PACCAR (Kenworth & Peterbilt) fault codes

1470 codes • Kenworth T680, T880, W900, T800; Peterbilt 579, 389, 567, 367

• PACCAR Fault Code P0016 — Camshaft Speed Signal – Not Corresponding With Engine Position
• PACCAR Fault Code P0017 — Crankshaft Speed Signal – Not Corresponding With Engine Position
• PACCAR Fault Code P0046 — VTG Turbocharger Actuator – Internal Error
• PACCAR Fault Code P0047 — VTG Turbocharger Actuator Position – Reference Error
• PACCAR Fault Code P004E — VTG Turbocharger Actuator – Power Supply Intermittent
• PACCAR Fault Code P0069 — Inlet Air Pressure in Inlet Manifold – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P006B — Exhaust Gas Pressure After BPV – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P006C — Inlet Air Pressure Before Compressor – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0072 — Ambient Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C78)
• PACCAR Fault Code P0073 — Ambient Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C78)
• PACCAR Fault Code P0087 — Fuel Pressure – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P0088 — Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P0093 — Common Rail Fuel Pressure – Sudden Pressure Drop
• PACCAR Fault Code P0094 — Common Rail Pump Unit Control – Correction Percentage Too High
• PACCAR Fault Code P0095 — Intercooler Temperature – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P0097 — Intercooler Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C17)
• PACCAR Fault Code P0098 — Intercooler Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C17)
• PACCAR Fault Code P009A — Ambient Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P009F — Common Rail Pressure Release Valve – Malfunction Detected During Check
• PACCAR Fault Code P00BA — Common Rail Fuel Pressure – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P0107 — Inlet Air Pressure in Inlet Manifold – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A51)
• PACCAR Fault Code P0108 — Inlet Air Pressure in Inlet Manifold – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A51)
• PACCAR Fault Code P0110 — Inlet Air Temperature in Inlet Manifold – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0112 — Inlet Air Temperature in Inlet Manifold – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A43)
• PACCAR Fault Code P0113 — Inlet Air Temperature in Inlet Manifold – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A43)
• PACCAR Fault Code P0115 — Engine Coolant Temperature – Data Erratic, Intermittent or Incorrect at Ignition ON
• PACCAR Fault Code P0117 — Engine Coolant Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A58)
• PACCAR Fault Code P0118 — Engine Coolant Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A58)
• PACCAR Fault Code P011A — Coolant Pump Speed – Stalled Pump Detected
• PACCAR Fault Code P0121 — Accelerator Pedal – Sticking Pedal
• PACCAR Fault Code P0127 — Intercooler Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P0148 — Fuel Injection Control – Malfunction Detected
• PACCAR Fault Code P0168 — Fuel Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P0180 — Fuel Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0182 — Fuel Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A42)
• PACCAR Fault Code P0183 — Fuel Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A42)
• PACCAR Fault Code P0192 — Common Rail Fuel Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A52)
• PACCAR Fault Code P0193 — Common Rail Fuel Pressure – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A52)
• PACCAR Fault Code P0195 — Engine Oil Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0197 — Engine Oil Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C16)
• PACCAR Fault Code P0198 — Engine Oil Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C16)
• PACCAR Fault Code P0201 — Common Rail Pump Unit 1 – Current Too Low or Open Circuit on ECU (D420) Pin (A26) or Pin (A25)
• PACCAR Fault Code P0205 — Common Rail Pump Unit 2 – Current Too Low or Open Circuit on ECU (D420) Pin (A27) or Pin (A28)
• PACCAR Fault Code P0217 — Engine Coolant Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P0219 — Engine Speed – Data Valid But Too High
• PACCAR Fault Code P0221 — CAN Communication – Message (EEC2) Out of Range, Remote Accelerator Pedal Position From Vehicle Control System
• PACCAR Fault Code P0261 — Common Rail Pump Unit 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A25)
• PACCAR Fault Code P0262 — Common Rail Pump Unit 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A25)
• PACCAR Fault Code P0263 — Cylinder 1 – Torque Contribution Too Low
• PACCAR Fault Code P0266 — Cylinder 2 – Torque Contribution Too Low
• PACCAR Fault Code P0269 — Cylinder 3 – Torque Contribution Too Low
• PACCAR Fault Code P0272 — Cylinder 4 – Torque Contribution Too Low
• PACCAR Fault Code P0273 — Common Rail Pump Unit 2 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A28)
• PACCAR Fault Code P0274 — Common Rail Pump Unit 2 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A28)
• PACCAR Fault Code P0275 — Cylinder 5 – Torque Contribution Too Low
• PACCAR Fault Code P0278 — Cylinder 6 – Torque Contribution Too Low
• PACCAR Fault Code P0298 — Engine Oil Temperature – Data Valid But Too High
• PACCAR Fault Code P0300 — Multiple Cylinders – Contribution Too Low or Misfire
• PACCAR Fault Code P0301 — Cylinder 1 – Contribution Too Low or Misfire
• PACCAR Fault Code P0302 — Cylinder 2 – Contribution Too Low or Misfire
• PACCAR Fault Code P0303 — Cylinder 3 – Contribution Too Low or Misfire
• PACCAR Fault Code P0304 — Cylinder 4 – Contribution Too Low or Misfire
• PACCAR Fault Code P0305 — Cylinder 5 – Contribution Too Low or Misfire
• PACCAR Fault Code P0306 — Cylinder 6 – Contribution Too Low or Misfire
• PACCAR Fault Code P0335 — Crankshaft Speed Signal – Disturbed or No Signal During Engine Operation
• PACCAR Fault Code P0340 — Camshaft Speed Signal – Disturbed or NO Signal During Engine Operation
• PACCAR Fault Code P0341 — Camshaft Speed Signal – Out of Range During Engine Operation
• PACCAR Fault Code P0407 — EGR Pressure Difference – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C80)
• PACCAR Fault Code P0408 — EGR Pressure Difference – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C80)
• PACCAR Fault Code P040B — EGR Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P040C — EGR Temperature – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C9)
• PACCAR Fault Code P040D — EGR Temperature – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C9)
• PACCAR Fault Code P0471 — Exhaust Gas Pressure Before Turbine – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0472 — Exhaust Gas Pressure Before Turbine – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C83)
• PACCAR Fault Code P0473 — Exhaust Gas Pressure Before Turbine – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C83)
• PACCAR Fault Code P047C — Exhaust Gas Pressure After BPV – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C81)
• PACCAR Fault Code P047D — Exhaust Gas Pressure After BPV – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C81)
• PACCAR Fault Code P0480 — Electronically Controlled Fan – Current Too Low or Open Circuit on ECU (D420) Pin (C74)
• PACCAR Fault Code P0486 — EGR Pressure Difference – Data Erratic, Intermittent, or Incorrect at Ignition ON
• PACCAR Fault Code P0493 — Fan Speed Control – Incorrect
• PACCAR Fault Code P0501 — Vehicle Speed Sensor – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P0502 — Vehicle Speed Sensor – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B40)
• PACCAR Fault Code P0503 — Vehicle Speed Sensor – Out of Range
• PACCAR Fault Code P0513 — Immobilizer – Not Matched
• PACCAR Fault Code P0521 — Engine Oil Pressure – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P0522 — Engine Oil Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C84)
• PACCAR Fault Code P0523 — Engine Oil Pressure – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C84)
• PACCAR Fault Code P0524 — Engine Oil Pressure – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P0527 — Fan Speed – Data Valid But Too High
• PACCAR Fault Code P0528 — Fan Speed – Data Valid But Too Low
• PACCAR Fault Code P0541 — Grid Heater Relay – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0542 — Grid Heater Relay – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0543 — Grid Heater Relay – Current Too Low or Open Circuit on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0562 — PCI ECU Power Supply – Data Valid But Too Low on ECU (D420) Pin (B60) or Pin (B61) or Pin (B62)
• PACCAR Fault Code P0563 — PCI ECU Power Supply – Data Valid But Too High on ECU (D420) Pin (B60) or Pin (B61) or Pin (B62)
• PACCAR Fault Code P0567 — CAN Communication – Message (CCVS_EBS) Out of Range, Cruise Control Resume Switch From Brake System
• PACCAR Fault Code P0568 — CAN Communication – Message (CCVS_EBS) Out of Range, Cruise Control Set Switch From Brake System
• PACCAR Fault Code P0571 — CAN Communication – Message (CCVS_EBS) Out of Range, Brake Switch From Brake System
• PACCAR Fault Code P060C — Internal ECU Injector Power Generation – Malfunction
• PACCAR Fault Code P061C — Engine Protection System – Engine Runaway, Detected
• PACCAR Fault Code P062A — Common Rail Pump Unit Control – Incorrect
• PACCAR Fault Code P062B — Internal ECU Injector Power Generation – Voltage Too High
• PACCAR Fault Code P062C — Internal ECU Injector Power Generation – Voltage Too High
• PACCAR Fault Code P062D — Internal ECU Injector Power Generation – Voltage Too Low
• PACCAR Fault Code P0634 — ECU Temperature – Data Erratic, Intermittent or Incorrect, Too High
• PACCAR Fault Code P0640 — Grid Heater Relay – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C55)
• PACCAR Fault Code P0642 — Accelerator Pedal Sensor 2 Power Supply – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P0643 — Accelerator Pedal Sensor 2 Power Supply – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P0650 — Malfunction Indicator Lamp (MIL) – Current Too Low or Open Circuit on ECU (D420) Pin (B23)
• PACCAR Fault Code P0652 — Accelerator Pedal Sensor 1 Power Supply – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P0653 — Accelerator Pedal Sensor 1 Power Supply – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P0666 — Internal ECU Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P0667 — ECU Temperature – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P0668 — Internal ECU Temperature – Internal Error
• PACCAR Fault Code P0669 — Internal ECU Temperature – Internal Error
• PACCAR Fault Code P0685 — PCI ECU – Short Circuit to Ground on ECU (D420) Pin (B3)
• PACCAR Fault Code P0691 — Electronically Controlled Fan – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C74)
• PACCAR Fault Code P0692 — Electronically Controlled Fan – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C74)
• PACCAR Fault Code P0698 — PCI ECU 5V Sensor Power Supply Circuit 1 – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P0699 — PCI ECU 5V Sensor Power Supply Circuit 1 – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P06AD — Internal ECU Temperature – Internal Error
• PACCAR Fault Code P06AE — Internal ECU Temperature – Internal Error
• PACCAR Fault Code P0703 — CAN Communication – Message (EBC1) Out of Range, EBS Brake Switch From Brake System
• PACCAR Fault Code P081C — CAN Communication – Message (CCVS_EBS) Out of Range, Park Brake Switch From Brake System
• PACCAR Fault Code P0830 — Clutch Input Signal – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P0833 — CAN Communication – Message (CCVS_EBS) Out of Range, Clutch Switch From Brake System
• PACCAR Fault Code P0865 — CAN – Message (PROPB_AST) Time-Out From Transmission System
• PACCAR Fault Code P0A1F — PCI ECU Power Supply – Data Valid But Too Low
• PACCAR Fault Code P101C — BPV Position – Incorrect, (in SCR Heating Mode)
• PACCAR Fault Code P101D — BPV Position – Incorrect, (Not in SCR Heating Mode)
• PACCAR Fault Code P101E — BPV Actuator Position – Unable to Reach Target
• PACCAR Fault Code P101F — BPV Actuator Current – Data Valid But Too High
• PACCAR Fault Code P1020 — BPV Actuator – Internal Error
• PACCAR Fault Code P1021 — BPV Actuator – CAN Communication Error
• PACCAR Fault Code P1022 — BPV Actuator – Internal Error
• PACCAR Fault Code P1023 — BPV Actuator Temperature – Data Valid But Too High
• PACCAR Fault Code P1024 — BPV Actuator Power Supply – Incorrect
• PACCAR Fault Code P1025 — BPV Actuator Position – Malfunction on Sensor
• PACCAR Fault Code P1026 — BPV Actuator – Out of Calibration
• PACCAR Fault Code P102A — Exhaust Gas Temperature After BPV – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C11)
• PACCAR Fault Code P102B — Exhaust Gas Temperature After BPV – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C11)
• PACCAR Fault Code P102C — VTG Turbocharger Turbine – Malfunction
• PACCAR Fault Code P102F — BPV Actuator Temperature – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1030 — EGR Temperature – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1032 — Vehicle Speed Sensor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1039 — Exhaust Gas Pressure After BPV – Data Valid But Too High
• PACCAR Fault Code P103A — PTO Main Switch – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P103B — PTO Status Switch – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P103C — EGR Control – Unable to Reach Target
• PACCAR Fault Code P1042 — VTG Turbocharger Control – Incorrect
• PACCAR Fault Code P104B — Inlet Air Pressure in Inlet Manifold – Data Valid But Too High
• PACCAR Fault Code P104C — Inlet Air Pressure in Inlet Manifold – Data Valid But Too Low
• PACCAR Fault Code P104D — Exhaust Gas Pressure Before Turbine – Data Valid But Too High
• PACCAR Fault Code P1050 — Exhaust Gas Pressure After BPV – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1051 — Grid Heater – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1053 — Speed Functions Off Switch – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1054 — Downhill Speed Control Switches – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1055 — Retarder Switches – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1057 — Exhaust Gas Pressure Before Turbine – Data Valid But Too Low
• PACCAR Fault Code P1058 — Inlet Air Pressure in Inlet Manifold – Data Valid But Too Low
• PACCAR Fault Code P1062 — Cruise Control Switches – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1086 — Common Rail Fuel Pressure – Increase Too Slow
• PACCAR Fault Code P1087 — Fuel Pressure – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P1088 — Common Rail Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P1089 — Common Rail Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P1090 — Common Rail Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P1091 — Common Rail Fuel Pressure – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1092 — Common Rail Fuel Pressure – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P109D — Common Rail Pressure Release Valve – Current Too High on ECU (D420) Pin (C4)
• PACCAR Fault Code P1105 — Engine Protection System – Approaching Engine Shutdown
• PACCAR Fault Code P1106 — Engine Protection System – Power Derate Active
• PACCAR Fault Code P1110 — Intercooler Efficiency – Too Low
• PACCAR Fault Code P1115 — Engine Coolant Temperature – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1122 — Cruise Control Brake Signal – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1128 — Inlet Air Temperature in Inlet Manifold – Data Valid But Too High
• PACCAR Fault Code P1158 — Wheel Speed, Front Axle, Left – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1159 — Wheel Speed, Front Axle, Right – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1160 — Wheel Speed, Rear Axle, Left – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1161 — Wheel Speed, Rear Axle, Right – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1162 — CAN Communication – Message (TCO1) Out of Range, Vehicle Speed From Tachograph
• PACCAR Fault Code P1163 — CAN Communication – Message (TCO1) Out of Range, Vehicle Speed From Transmission System
• PACCAR Fault Code P1168 — Fuel Temperature – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1195 — Common Rail Fuel Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1196 — Common Rail Fuel Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1199 — Common Rail Fuel Pressure – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1201 — Injector Solenoid Valve Cylinder 1 – Current Too Low or Open Circuit on ECU (D420) Pin (A1) and/or Pin (A2)
• PACCAR Fault Code P1202 — Injector Solenoid Valve Cylinder 1 – Short Circuit Between ECU (D420) Pin (A1) and Pin (A2)
• PACCAR Fault Code P1203 — Injector Solenoid Valve Cylinder 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A1)
• PACCAR Fault Code P1204 — Injector Solenoid Valve Cylinder 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A1)
• PACCAR Fault Code P1205 — Injector Solenoid Valve Cylinder 5 – Current Too Low or Open Circuit on ECU (D420) Pin (A3) and/or Pin (A4)
• PACCAR Fault Code P1206 — Injector Solenoid Valve Cylinder 5 – Short Circuit Between ECU (D420) Pin (A3) and Pin (A4)
• PACCAR Fault Code P1207 — Injector Solenoid Valve Cylinder 5 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A4)
• PACCAR Fault Code P1208 — Injector Solenoid Valve Cylinder 5 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A4)
• PACCAR Fault Code P1209 — Injector Solenoid Valve Cylinder 3 – Current Too Low or Open Circuit on ECU (D420) Pin (A5) and/or Pin (A6)
• PACCAR Fault Code P1210 — Injector Solenoid Valve Cylinder 3 – Short Circuit Between ECU (D420) Pin (A5) and Pin (A6)
• PACCAR Fault Code P1211 — Injector Solenoid Valve Cylinder 3 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A5)
• PACCAR Fault Code P1212 — Injector Solenoid Valve Cylinder 3 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A5)
• PACCAR Fault Code P1213 — Injector Solenoid Valve Cylinder 6 – Current Too Low or Open Circuit on ECU (D420) Pin (A7) and/or Pin (A8)
• PACCAR Fault Code P1214 — Injector Solenoid Valve Cylinder 6 – Short Circuit Between ECU (D420) Pin (A7) and Pin (A8)
• PACCAR Fault Code P1215 — Injector Solenoid Valve Cylinder 6 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A8)
• PACCAR Fault Code P1216 — Injector Solenoid Valve Cylinder 6 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A8)
• PACCAR Fault Code P1217 — Injector Solenoid Valve Cylinder 2 – Current Too Low or Open Circuit on ECU (D420) Pin (A9) and/or Pin (A10)
• PACCAR Fault Code P1218 — Injector Solenoid Valve Cylinder 2 – Short Circuit Between ECU (D420) Pin (A9) and Pin (A10)
• PACCAR Fault Code P1219 — Injector Solenoid Valve Cylinder 2 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A9)
• PACCAR Fault Code P1220 — Injector Solenoid Valve Cylinder 2 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A9)
• PACCAR Fault Code P1221 — Injector Solenoid Valve Cylinder 4 – Current Too Low or Open Circuit on ECU (D420) Pin (A11) and/or Pin (A12)
• PACCAR Fault Code P1222 — Injector Solenoid Valve Cylinder 4 – Short Circuit Between ECU (D420) Pin (A11) and Pin (A12)
• PACCAR Fault Code P1223 — Injector Solenoid Valve Cylinder 4 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A12)
• PACCAR Fault Code P1224 — Injector Solenoid Valve Cylinder 4 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A12)
• PACCAR Fault Code P1225 — Injector Solenoid Valve Cylinder 1, 2, or 3 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A2) or Pin (A10) or Pin (A6)
• PACCAR Fault Code P1226 — Injector Solenoid Valve Cylinder 1, 2, or 3 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A2) or Pin (A10) or Pin (A6)
• PACCAR Fault Code P1227 — Injector Solenoid Valve Cylinder 4, 5, or 6 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A11) or Pin (A3) or Pin (A7)
• PACCAR Fault Code P1228 — Injector Solenoid Valve Cylinder 4, 5, or 6 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A11) or Pin (A3) or Pin (A7)
• PACCAR Fault Code P1230 — Common Rail Pump Unit 1 – Short Circuit Between ECU (D420) Pin (A25) and Pin (A26)
• PACCAR Fault Code P1234 — Common Rail Pump Unit 2 – Short Circuit Between ECU (D420) Pin (A27) and Pin (A28)
• PACCAR Fault Code P1263 — Cylinder 1 – Torque Contribution Too High
• PACCAR Fault Code P1266 — Cylinder 2 – Torque Contribution Too High
• PACCAR Fault Code P1269 — Cylinder 3 – Torque Contribution Too High
• PACCAR Fault Code P1272 — Cylinder 4 – Torque Contribution Too High
• PACCAR Fault Code P1275 — Cylinder 5 – Torque Contribution Too High
• PACCAR Fault Code P1278 — Cylinder 6 – Torque Contribution Too High
• PACCAR Fault Code P127A — EGR Pressure Difference – Data Valid But Too Low
• PACCAR Fault Code P127B — EGR Pressure Difference – Data Valid But Too High
• PACCAR Fault Code P127C — EGR Pressure Difference – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P128A — Common Rail Fuel Pressure – Data Valid But Too Low, Due to Low Supply Pressure
• PACCAR Fault Code P1298 — Engine Oil Temperature – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1301 — Cylinder 1 – Intermittent Misfire
• PACCAR Fault Code P1302 — Cylinder 5 – Intermittent Misfire
• PACCAR Fault Code P1303 — Cylinder 3 – Intermittent Misfire
• PACCAR Fault Code P1304 — Cylinder 6 – Intermittent Misfire
• PACCAR Fault Code P1305 — Cylinder 2 – Intermittent Misfire
• PACCAR Fault Code P1306 — Cylinder 4 – Intermittent Misfire
• PACCAR Fault Code P1335 — Crankshaft Speed Signal – Disturbed or NO Signal During Engine Start
• PACCAR Fault Code P1336 — Crankshaft Speed Signal – Out of Range During Engine Start
• PACCAR Fault Code P1340 — Camshaft Speed Signal – Disturbed or NO Signal During Engine Start
• PACCAR Fault Code P1341 — Camshaft Speed Signal – Out of Range During Engine Start
• PACCAR Fault Code P1350 — VTG Turbocharger Actuator Power Supply – Internal Error
• PACCAR Fault Code P1351 — VTG Turbocharger Actuator – Internal Error
• PACCAR Fault Code P1352 — VTG Turbocharger Actuator Learning – Malfunction Detected
• PACCAR Fault Code P1354 — VTG Turbocharger Actuator Power Supply – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P1356 — VTG Turbocharger Actuator Temperature – Data Valid But Too High
• PACCAR Fault Code P1400 — EGR Mass Flow – Estimated EGR Rate Too High
• PACCAR Fault Code P1401 — Crankcase Air Pressure – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C5)
• PACCAR Fault Code P1402 — Crankcase Air Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C5)
• PACCAR Fault Code P1404 — Crankcase Air Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1407 — Crankcase Air Pressure – Data Valid But Too Low
• PACCAR Fault Code P1408 — Crankcase Air Pressure – Data Valid But Too High
• PACCAR Fault Code P140A — Crankcase Ventilation Module Rotor Speed – Data Valid But Too High
• PACCAR Fault Code P140E — Crankcase Ventilation Module Rotor Speed – Data Valid But Too Low
• PACCAR Fault Code P1458 — EGR Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1480 — EGR Valve Module Position – Unable to Reach Target
• PACCAR Fault Code P1481 — EGR Valve Module Current – Data Valid But Too High
• PACCAR Fault Code P1482 — EGR Valve Module – Internal Error
• PACCAR Fault Code P1483 — EGR Valve Module – CAN Communication Error
• PACCAR Fault Code P1484 — EGR Valve Module – Internal Error
• PACCAR Fault Code P1485 — EGR Valve Module Temperature – Data Valid But Too High
• PACCAR Fault Code P1486 — EGR Valve Module Power Supply – Incorrect
• PACCAR Fault Code P1487 — EGR Valve Module Position – Malfunction ON Sensor
• PACCAR Fault Code P1488 — EGR Valve Module – Out of Calibration
• PACCAR Fault Code P1489 — EGR Valve – Stuck Closed
• PACCAR Fault Code P148A — Common Rail Pump Unit Control – Correction Percentage Too High, Due to Low Supply Pressure
• PACCAR Fault Code P1490 — EGR Gas Flow Detected – While the EGR Valve is Closed
• PACCAR Fault Code P1494 — Fan Speed – Data Valid But Too High
• PACCAR Fault Code P1495 — Engine Protection System – Power Derate Active
• PACCAR Fault Code P1496 — Engine Protection System – Protection Mode, Active
• PACCAR Fault Code P1497 — EGR Valve Position – Incorrect
• PACCAR Fault Code P1498 — EGR Valve Position – Incorrect
• PACCAR Fault Code P1501 — Vehicle Speed Sensor – Current Too Low or Open Circuit on ECU (D420) Pin (B40)
• PACCAR Fault Code P1502 — Vehicle Speed Sensor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1503 — Vehicle Speed Sensor – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B40)
• PACCAR Fault Code P1504 — Vehicle Speed Sensor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1505 — Vehicle Speed Sensor – Frequency Out of Range
• PACCAR Fault Code P150F — Engine Oil Level – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P1514 — Aftertreatment System – DEF Dosing Malfunction Detected
• PACCAR Fault Code P1516 — Aftertreatment System – Malfunction Detected
• PACCAR Fault Code P1517 — Aftertreatment System – DEF Quality Malfunction Detected
• PACCAR Fault Code P1518 — Aftertreatment System – Engine Torque Derate Active
• PACCAR Fault Code P1519 — Aftertreatment System – DEF Level Low
• PACCAR Fault Code P151A — Aftertreatment System – Vehicle Speed Limitation Active
• PACCAR Fault Code P151B — Aftertreatment System – Upcoming Vehicle Speed Limitation Warning
• PACCAR Fault Code P151C — Aftertreatment System – DEF Level Too Low
• PACCAR Fault Code P151D — Aftertreatment System – DEF Level Very Low
• PACCAR Fault Code P151E — Aftertreatment System – DEF Tank Empty
• PACCAR Fault Code P151F — Aftertreatment System – Engine Speed Limitation, Active
• PACCAR Fault Code P1523 — Engine Oil Pressure – Data Valid But Too High, Most Severe
• PACCAR Fault Code P1524 — Engine Oil Pressure – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P1526 — CAN Communication – Message (CM1) Out of Range, Requested Percent Fan Speed From Vehicle Control System
• PACCAR Fault Code P153B — Crankcase Ventilation Module Rotor Speed – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P153C — Crankcase Ventilation Module Rotor Speed – Data Valid But Too High
• PACCAR Fault Code P1560 — Coolant Level – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P1563 — PCI ECU Power Supply – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P1564 — Fuel Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1565 — Idle Speed – Differs From the Target Idle Speed
• PACCAR Fault Code P1566 — Idle Speed Control – Incorrect
• PACCAR Fault Code P156E — Vehicle Speed Sensor – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B12)
• PACCAR Fault Code P156F — Vehicle Speed Sensor – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B12)
• PACCAR Fault Code P1570 — Engine Oil Temperature – Data Erratic, Intermittent or Incorrect, During Engine Warm-Up
• PACCAR Fault Code P1571 — Engine Oil Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1573 — Inlet Air Temperature in Inlet Manifold – Data Valid But Too High
• PACCAR Fault Code P1580 — Turbocharger Speed – Data Valid But Too High
• PACCAR Fault Code P1581 — Turbocharger Speed – Data Valid But Too Low
• PACCAR Fault Code P1601 — PCI ECU – Internal Error
• PACCAR Fault Code P160A — PCI ECU – Internal Error
• PACCAR Fault Code P1644 — PCI ECU 5V Sensor Power Supply Circuit 2 – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P1645 — PCI ECU 5V Sensor Power Supply Circuit 2 – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P1650 — Red Warning – Short Circuit to Ground or Open Circuit on ECU (D420) Pin (B8)
• PACCAR Fault Code P1652 — Red Warning – Short Circuit to Supply on ECU (D420) Pin (B8)
• PACCAR Fault Code P1653 — Yellow Warning – Short Circuit to Ground or Open Circuit on ECU (D420) Pin (B4)
• PACCAR Fault Code P1655 — Yellow Warning – Short Circuit to Supply on ECU (D420) Pin (B4)
• PACCAR Fault Code P1682 — Engine Oil Level – Current Too Low or Open Circuit on ECU (D420) Pin (B35)
• PACCAR Fault Code P1687 — Starter Motor – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B16)
• PACCAR Fault Code P1688 — Starter Motor – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B16)
• PACCAR Fault Code P1693 — Cold Starting Aid – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P1694 — Cold Starting Aid – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P1695 — Air Compressor Air Pressure – Data Valid But Too High
• PACCAR Fault Code P1696 — Air Compressor Air Pressure – Data Valid But Too Low
• PACCAR Fault Code P1698 — PCI ECU 5V Sensor Power Supply Circuit 4 – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P1699 — PCI ECU 5V Sensor Power Supply Circuit 4 – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P1704 — NOx Sensor Before Catalyst Lambda Value – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P1705 — NOx Sensor Before Catalyst Lambda Value – Response Rate, Too Low
• PACCAR Fault Code P1706 — NOx Sensor Before Catalyst Lambda Value – Response Rate, Too High
• PACCAR Fault Code P1709 — NOx Sensor Before Catalyst Lambda Value – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P170A — NOx Sensor Before Catalyst Lambda Value – Data Valid But Too Low
• PACCAR Fault Code P170B — NOx Sensor Before Catalyst Lambda Value – Data Valid But Too High
• PACCAR Fault Code P170C — NOx Sensor Before Catalyst – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P170D — NOx Sensor Before Catalyst Response – Too Low
• PACCAR Fault Code P170E — NOx Sensor Before Catalyst Response – Too High
• PACCAR Fault Code P170F — NOx Sensor Before Catalyst – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P1710 — NOx Concentration Before Catalyst – Data Valid But Too Low
• PACCAR Fault Code P1711 — NOx Concentration Before Catalyst – Data Valid But Too High
• PACCAR Fault Code P1712 — Engine Speed – Insufficient Change, During Gear Shift
• PACCAR Fault Code P1713 — Engine Speed – Insufficient Change, During Torque Converter Lock-Up
• PACCAR Fault Code P1717 — Exhaust Gas Temperature After BPV – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1718 — EGR Mass Flow – Data Valid But Too High
• PACCAR Fault Code P1719 — EGR Mass Flow – Data Valid But Too Low
• PACCAR Fault Code P171B — EGR Flow Response – Decrease Too Slow
• PACCAR Fault Code P171C — EGR Flow Response – Increase Too Slow
• PACCAR Fault Code P1722 — BPV Control – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1723 — Exhaust Gas Pressure Before Turbine – Data Valid But Too Low
• PACCAR Fault Code P1724 — Exhaust Gas Pressure Before Turbine – Data Valid But Too High
• PACCAR Fault Code P1726 — Exhaust Gas Pressure Before Turbine – Response Too Slow, on Requested Pressure
• PACCAR Fault Code P1751 — Malfunction Indicator Lamp (MIL) – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B23)
• PACCAR Fault Code P1839 — CAN Communication – Message (AT1IGC1) Rate Too High From NOx Sensor Before Catalyst
• PACCAR Fault Code P1840 — CAN – Message (AT1IGC1) Time-Out From NOx Sensor Before Catalyst
• PACCAR Fault Code P1841 — CAN Communication – Message (AT1IGC2) Rate Too High From NOx Sensor Before Catalyst
• PACCAR Fault Code P1842 — CAN – Message (AT1IGC2) Time-Out From NOx Sensor Before Catalyst
• PACCAR Fault Code P1846 — CAN Communication – Message (ECUID) Rate Too High From NOx Sensor Before Catalyst
• PACCAR Fault Code P1847 — CAN – Message (ECUID) Time-Out From NOx Sensor Before Catalyst
• PACCAR Fault Code P1848 — Heater Element NOx Sensor Before Catalyst – Malfunction
• PACCAR Fault Code P1849 — Heater Element NOx Sensor Before Catalyst – Malfunction
• PACCAR Fault Code P1851 — Heater Element NOx Sensor Before Catalyst – Malfunction
• PACCAR Fault Code P1852 — CAN Communication – Message (INFO) Not Available, Info-Related Data From NOx Sensor Before Catalyst
• PACCAR Fault Code P1854 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1855 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1856 — CAN Communication – Message (NOX_VALUE) Not Available, NOx Measurement From NOx Sensor Before Catalyst
• PACCAR Fault Code P1857 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1858 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1860 — CAN Communication – Message (NOX_VALUE) Not Available, Oxygen Concentration From NOx Sensor Before Catalyst
• PACCAR Fault Code P1861 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1862 — NOx Sensor Before Catalyst – Internal Error
• PACCAR Fault Code P1863 — CAN Communication – Message (PROPB_AST) Out of Range, Maneuvering Mode From Transmission System
• PACCAR Fault Code P1866 — Exhaust Gas Pressure Before Turbine – Data Valid But Too High
• PACCAR Fault Code P1867 — Exhaust Gas Temperature After BPV – Data Valid But Too High
• PACCAR Fault Code P1869 — Fuel Temperature – Data Valid But Too Low
• PACCAR Fault Code P1870 — Crankcase Air Pressure – Data Valid But Too Low
• PACCAR Fault Code P1871 — Pressure Before Turbocharger Compressor (Humidity Sensor) – Data Valid But Too Low
• PACCAR Fault Code P1872 — Pressure Before Turbocharger Compressor (Humidity Sensor) – Data Valid But Too High
• PACCAR Fault Code P1874 — Temperature Before Turbocharger Compressor (Humidity Sensor) – Data Valid But Too High
• PACCAR Fault Code P1876 — Ambient Pressure – Data Valid But Too High
• PACCAR Fault Code P1878 — Crankcase Ventilation Module Rotor Speed – Data Valid But Too High
• PACCAR Fault Code P1879 — Engine Coolant Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P187B — Coolant Pump Speed – Data Valid But Too High
• PACCAR Fault Code P1880 — Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P1882 — Fuel Temperature – Data Valid But Too High
• PACCAR Fault Code P1887 — Exhaust Gas Pressure After BPV – Data Valid But Too High
• PACCAR Fault Code P188C — Inlet Air Pressure in Inlet Manifold – Data Valid But Too High
• PACCAR Fault Code P1890 — Ambient Pressure – Data Valid But Too Low
• PACCAR Fault Code P1891 — Exhaust Gas Pressure Before Turbine – Data Valid But Too Low
• PACCAR Fault Code P1896 — Turbocharger Speed – Data Valid But Too High
• PACCAR Fault Code P1898 — NOx Concentration Before Catalyst – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P1899 — O2 Concentration Before Catalyst – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P189A — BPV Actuator Temperature – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P189C — EGR Valve Module Temperature – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P189E — VTG Turbocharger Actuator Temperature – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P1909 — NOx Sensor Before Catalyst – Heater Element Malfunction
• PACCAR Fault Code P190A — HC Desorb Procedure – Unsuccessful
• PACCAR Fault Code P190B — Temperature Control Before DOC – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P190C — Temperature Control Before DOC – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P190D — Temperature Control Before DOC – Data Valid But Too High, Least Severe
• PACCAR Fault Code P190E — Temperature Control Before DOC – Data Valid But Too High, Most Severe
• PACCAR Fault Code P1910 — Air Compressor Air Pressure – Data Erratic, Intermittent or Incorrect, Too High
• PACCAR Fault Code P1911 — Air Compressor Air Pressure – Data Erratic, Intermittent or Incorrect, Too Low
• PACCAR Fault Code P1963 — CAN Communication – Message (POWER_ST) Not Available From NOx Sensor Before Catalyst
• PACCAR Fault Code P2147 — Common Rail Pump Unit 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A26)
• PACCAR Fault Code P2148 — Common Rail Pump Unit 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A26)
• PACCAR Fault Code P2150 — Common Rail Pump Unit 2 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A27)
• PACCAR Fault Code P2151 — Common Rail Pump Unit 2 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A27)
• PACCAR Fault Code P2181 — Engine Coolant Temperature – Does Not Match Engine Operating Conditions
• PACCAR Fault Code P2183 — Engine Coolant Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P2199 — Inlet Air Temperature Before Compressor – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P2226 — Internal ECU Ambient Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P2228 — Internal ECU Ambient Pressure – Malfunction
• PACCAR Fault Code P2229 — Internal ECU Ambient Pressure – Malfunction
• PACCAR Fault Code P222C — Internal ECU Ambient Pressure – Internal Error
• PACCAR Fault Code P222D — Internal ECU Ambient Pressure – Internal Error
• PACCAR Fault Code P2262 — Engine Protection System – Broken Turbocharger Shaft, Detected
• PACCAR Fault Code P2266 — Water in Fuel – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A49)
• PACCAR Fault Code P2275 — Water in Fuel – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A49)
• PACCAR Fault Code P228C — Common Rail Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P228D — Common Rail Fuel Pressure – Data Valid But Too Low
• PACCAR Fault Code P228E — Common Rail Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P228F — Common Rail Fuel Pressure – Data Valid But Too Low
• PACCAR Fault Code P2294 — Common Rail Pressure Release Valve – Open Circuit on ECU (D420) Pin (C4) or Pin (C26)
• PACCAR Fault Code P2295 — Common Rail Pressure Release Valve – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C4)
• PACCAR Fault Code P229A — Common Rail Pressure Release Valve Current – Too High
• PACCAR Fault Code P229B — Common Rail Pressure Release Valve Current – Too Low
• PACCAR Fault Code P229C — Common Rail Pressure Release Valve Current – Data Valid But Too Low
• PACCAR Fault Code P229D — Common Rail Pressure Release Valve Current – Data Valid But Too High
• PACCAR Fault Code P2457 — EGR Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P2458 — CAN Communication – Message (CM1) Out of Range, DPF Regeneration Switch From Vehicle Control System
• PACCAR Fault Code P2459 — CAN Communication – Message (CM1) Out of Range, DPF Regeneration Switch From Vehicle Control System
• PACCAR Fault Code P2507 — Engine Off Time – Data erratic, intermittent or incorrect
• PACCAR Fault Code P250A — Engine Oil Level – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P250B — Engine Oil Level – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P250C — Engine Oil Level – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B35)
• PACCAR Fault Code P250D — Engine Oil Level – Open Circuit on ECU (D420) Pin (B35)
• PACCAR Fault Code P250E — Engine Oil Level – Unlikely, Difference Too High
• PACCAR Fault Code P250F — Engine Oil Level – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P252F — Engine Oil Level – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P2530 — Engine Run Time – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P253B — CAN Communication – Message (PTO) Out of Range, Engine PTO Governor Set Switch From Vehicle Control System
• PACCAR Fault Code P2541 — Fuel Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A50)
• PACCAR Fault Code P2542 — Fuel Pressure – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A50)
• PACCAR Fault Code P2558 — Coolant Level 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C7)
• PACCAR Fault Code P2559 — Coolant Level 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C7)
• PACCAR Fault Code P2560 — Coolant Level – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P2563 — VTG Turbocharger Actuator Position – NO or Too Slow Movement
• PACCAR Fault Code P2579 — Turbocharger Speed – Abnormal Rate of Change
• PACCAR Fault Code P2580 — Turbocharger Speed – Data Valid But Too Low, Least Severe on ECU (D420) Pin (C20)
• PACCAR Fault Code P2581 — Turbocharger Speed – Data Valid But Too High, Least Severe on ECU (D420) Pin (C20)
• PACCAR Fault Code P2600 — Coolant Pump – Open Circuit on ECU (D420) Pin (C1)
• PACCAR Fault Code P2604 — Coolant Pump – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C1)
• PACCAR Fault Code P2605 — Coolant Pump – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C1)
• PACCAR Fault Code P2609 — Grid Heater Relay – Current Too Low or Open Circuit on ECU (D420) Pin (C55)
• PACCAR Fault Code P262B — PCI ECU Power Supply – Open Circuit on ECU (D420) Pin (B43)
• PACCAR Fault Code P268A — Fuel Injection Control – Incorrect
• PACCAR Fault Code P3003 — PCI ECU Power Supply – Data Valid But Too Low
• PACCAR Fault Code P3046 — VTG Turbocharger Actuator Position – Reference Error
• PACCAR Fault Code P30B3 — CAN – Message (AT1IG1) Time-Out From NOx Sensor Before Catalyst
• PACCAR Fault Code P3100 — Coolant Pump Speed – Data Valid But Too High, When Low Speed is Requested
• PACCAR Fault Code P3101 — Coolant Pump Speed – Data Valid But Too Low, When Low Speed is Requested
• PACCAR Fault Code P3300 — Cylinder Misfire – Detected
• PACCAR Fault Code P3405 — MX Engine Brake Solenoid Valve Cylinder 1-3 – Current Too Low or Open Circuit on ECU (D420) Pin (A17)
• PACCAR Fault Code P3407 — MX Engine Brake Solenoid Valve Cylinder 1-3 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A17)
• PACCAR Fault Code P3408 — MX Engine Brake Solenoid Valve Cylinder 1-3 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A17)
• PACCAR Fault Code P3445 — MX Engine Brake Solenoid Valve Cylinder 4-6 – Current Too Low or Open Circuit on ECU (D420) Pin (A20)
• PACCAR Fault Code P3447 — MX Engine Brake Solenoid Valve Cylinder 4-6 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A20)
• PACCAR Fault Code P3448 — MX Engine Brake Solenoid Valve Cylinder 4-6 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A20)
• PACCAR Fault Code P3750 — Exhaust Gas Temperature Before DOC – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3751 — Exhaust Gas Temperature Before DOC – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3752 — Exhaust Gas Temperature Before DOC – Unlikely, Not Changing During Operation
• PACCAR Fault Code P3753 — Exhaust Gas Temperature Before DPF – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3754 — Exhaust Gas Temperature Before DPF – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3755 — Exhaust Gas Temperature Before DPF – Data Erratic, Intermittent, or Incorrect, Not Changing During Operation
• PACCAR Fault Code P3756 — Exhaust Gas Temperature After DPF – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3757 — Exhaust Gas Temperature After DPF – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3758 — Exhaust Gas Temperature After DPF – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3760 — Exhaust Gas Temperature Before DOC – Data Valid But Too High, at Ignition ON
• PACCAR Fault Code P3761 — Exhaust Gas Temperature Before DPF – Data Valid But Too High, at Ignition ON
• PACCAR Fault Code P3762 — DPF Differential Pressure – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (9)
• PACCAR Fault Code P3763 — DPF Differential Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (9)
• PACCAR Fault Code P3764 — DPF Differential Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON or OFF
• PACCAR Fault Code P3765 — DPF Differential Pressure – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3766 — DPF Outlet Pressure – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (11)
• PACCAR Fault Code P3767 — DPF Outlet Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (11)
• PACCAR Fault Code P3768 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, At Ignition ON or OFF
• PACCAR Fault Code P3769 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, During Operation on ECU (D442) Pin (11)
• PACCAR Fault Code P3770 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON or During Operation on ECU (D442) Pin (11)
• PACCAR Fault Code P3771 — Exhaust Gas Temperature After DPF – Data Valid But Too High, at Ignition ON
• PACCAR Fault Code P3772 — Exhaust Gas Temperature Before DOC – Data Valid But Too Low
• PACCAR Fault Code P3773 — SCR Catalyst Efficiency – Compensation Level Too High
• PACCAR Fault Code P3776 — Diesel Oxidation Catalyst (DOC) Efficiency – Data Valid But Too Low
• PACCAR Fault Code P3777 — DEF Dosing Valve – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (16)
• PACCAR Fault Code P3778 — Diesel Oxidation Catalyst (DOC) – Not Detected
• PACCAR Fault Code P3779 — Exhaust Gas Temperature Before DPF – Data Valid But Too High, Least Severe
• PACCAR Fault Code P3780 — Exhaust Gas Temperature Before DPF – Data Valid But Too High, Most Severe
• PACCAR Fault Code P3781 — Exhaust Gas Temperature Before DOC – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3782 — Exhaust Gas Temperature Before DPF – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3783 — Diesel Oxidation Catalyst (DOC) – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3784 — Exhaust Gas Temperature Before DPF – Data Valid But Too Low
• PACCAR Fault Code P3785 — Exhaust Gas Temperature After DPF – Data Valid But Too Low
• PACCAR Fault Code P3786 — Diesel Oxidation Catalyst (DOC) Compensation Level – Too High
• PACCAR Fault Code P3787 — Fuel Dosing Module – Used Up All Compensation
• PACCAR Fault Code P3789 — Exhaust Gas Temperature After DPF – Data Valid But Too High, Most Severe
• PACCAR Fault Code P3790 — Diesel Particulate Filter (DPF) – Not Detected
• PACCAR Fault Code P3791 — Diesel Particulate Filter (DPF) – Too Frequent Regeneration
• PACCAR Fault Code P3792 — Exhaust Gas Temperature After DPF – Data Valid But Too High, Least Severe
• PACCAR Fault Code P3793 — Exhaust Gas Temperature After DPF – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3794 — Diesel Particulate Filter (DPF) – Differential Pressure Too High Level, Least Severe
• PACCAR Fault Code P3796 — Diesel Particulate Filter (DPF) – Particulate Level, Most Severe
• PACCAR Fault Code P3797 — Diesel Particulate Filter (DPF) – Particulate Level, Least Severe
• PACCAR Fault Code P3798 — Diesel Particulate Filter (DPF) – Particulate Level, Moderately Severe
• PACCAR Fault Code P3799 — DPF Differential Pressure – Insufficient For DPF Regeneration
• PACCAR Fault Code P3800 — Diesel Particulate Filter (DPF) – Regeneration Completed But Insufficient
• PACCAR Fault Code P3801 — Exhaust Gas Temperature After SCR Catalyst – Data Valid But Too High, at Ignition ON
• PACCAR Fault Code P3802 — Diesel Particulate Filter (DPF) – Filter Severely Damaged
• PACCAR Fault Code P3803 — CAN Communication – Time-Out From PM Sensor
• PACCAR Fault Code P3804 — DPF Regeneration Switch – Timer-Based Regeneration Inhibit
• PACCAR Fault Code P3805 — PM Sensor ECU – Temperature, Too High or Too Low
• PACCAR Fault Code P3806 — DPF Regeneration Switch – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3807 — Diesel Particulate Filter (DPF) – Stationary Regeneration Aborted Due to Poor Regeneration Efficiency
• PACCAR Fault Code P3808 — Exhaust Gas Temperature After SCR Catalyst – Data Valid But Too High, Least Severe
• PACCAR Fault Code P3809 — Heater Element PM Sensor – Voltage Too High or Short Circuit to Supply, High Side
• PACCAR Fault Code P3810 — Heater Element PM Sensor – Voltage Too Low or Short Circuit to Ground, High Side
• PACCAR Fault Code P3811 — Heater Element PM Sensor – Voltage Too High or Short Circuit to Supply, Low Side
• PACCAR Fault Code P3812 — Exhaust Gas Temperature After SCR Catalyst – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3813 — Exhaust Gas Temperature After SCR Catalyst – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3814 — Exhaust Gas Temperature After SCR Catalyst – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3815 — Heater Element PM Sensor – Voltage Too Low or Short Circuit to Ground, Low Side
• PACCAR Fault Code P3816 — PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3817 — PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3818 — SCR Catalyst Conversion Efficiency – Too Low
• PACCAR Fault Code P3819 — SCR Catalyst Efficiency – Degraded
• PACCAR Fault Code P3820 — Pump Module – Dosing System Degradation Malfunction
• PACCAR Fault Code P3821 — Sensor Circuit PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3822 — DEF Quality – DEF Concentration Too Low
• PACCAR Fault Code P3824 — DEF Quality – DEF Concentration Too High
• PACCAR Fault Code P3825 — Sensor Circuit PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3826 — Exhaust Gas Temperature After SCR Catalyst – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3827 — PM Sensor Heater – Error, at Deactivation
• PACCAR Fault Code P3828 — PM Sensor Heater – Error, at Startup
• PACCAR Fault Code P3829 — DEF Tank Level Sensor – Persist, Not Valid
• PACCAR Fault Code P3830 — SCR Catalyst Conversion Efficiency – Too Low, Most Severe
• PACCAR Fault Code P3831 — Fuel Shut-Off Valve – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (50)
• PACCAR Fault Code P3832 — Fuel Shut-Off Valve – Short Circuit to Supply or Open Circuit on ECU (D442) Pin (50)
• PACCAR Fault Code P3833 — Fuel Dosing Valve – Current Too Low or Open Circuit on ECU (D442) Pin (48) or Pin (32)
• PACCAR Fault Code P3834 — Fuel Shut-Off Valve – Data Erratic, Intermittent or Incorrect on ECU (D442) Pin (50)
• PACCAR Fault Code P3835 — Fuel Shut-Off Valve – Not Responding or Out of Adjustment on ECU (D442) Pin (50)
• PACCAR Fault Code P3836 — Fuel Dosing Valve – Leakage Detected
• PACCAR Fault Code P3837 — Intake Module Fuel Pressure – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P3838 — Intake Module Fuel Pressure – Data Erratic, Intermittent or Incorrect, Not Changing During Operation on ECU (D442) Pin (7)
• PACCAR Fault Code P3839 — Intake Module Fuel Pressure – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (7)
• PACCAR Fault Code P3840 — Intake Module Fuel Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (7)
• PACCAR Fault Code P3841 — Air Shut-Off Valve – Stuck in Closed Position
• PACCAR Fault Code P3842 — Air Shut-Off Valve – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (49)
• PACCAR Fault Code P3843 — Air Shut-Off Valve – Short Circuit to Supply or Open Circuit on ECU (D442) Pin (49)
• PACCAR Fault Code P3844 — DEF Dosing Valve – Current Too Low or Open Circuit on ECU (D442) Pin (16) or Pin (17)
• PACCAR Fault Code P3845 — Sensor Circuit PM Sensor – Voltage Too High
• PACCAR Fault Code P3846 — PM Sensor ECU – Internal Error
• PACCAR Fault Code P3847 — Pump Module Pressure – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (12)
• PACCAR Fault Code P3848 — Pump Module Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (12)
• PACCAR Fault Code P3852 — PM Sensor Temperature Probe – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3853 — PM Sensor Temperature Probe – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3854 — PM Sensor – Persist, Not Valid
• PACCAR Fault Code P3855 — PM Sensor ECU – Internal Error
• PACCAR Fault Code P3856 — DEF Pressure – Data Valid But Too High
• PACCAR Fault Code P3857 — DEF Pressure – Data Valid But Too Low
• PACCAR Fault Code P3859 — DEF Dosing Valve – Not Responding or Out of Adjustment
• PACCAR Fault Code P3861 — DPF Filtration Efficiency – Too Much Soot Detected
• PACCAR Fault Code P3862 — CAN Communication – Timeout From Engine Management System
• PACCAR Fault Code P3865 — DEF Tank Temperature Sensor – Internal Error
• PACCAR Fault Code P3867 — PM Sensor – Power Supply Intermittent
• PACCAR Fault Code P3868 — PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3869 — PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3870 — PM Sensor – Current Too High
• PACCAR Fault Code P3871 — PM Sensor – Regeneration, Failed
• PACCAR Fault Code P3872 — PM Sensor – Data Not Rational, Drifted Low
• PACCAR Fault Code P3873 — CAN Communication – Message (AT1IOGC1) Time-Out From NOx Sensor After Catalyst
• PACCAR Fault Code P3874 — PM Sensor ECU – Temperature Too High
• PACCAR Fault Code P3875 — EAS-4 ECU – Data Lost Due to Incorrect Power Down
• PACCAR Fault Code P3876 — EAS-4 ECU – Internal Error
• PACCAR Fault Code P3877 — PM Sensor – Regeneration, Too Long
• PACCAR Fault Code P3878 — Hydrocarbon Storage – Level Too High
• PACCAR Fault Code P3879 — PM Sensor Temperature Probe – Signal in Range, Error
• PACCAR Fault Code P3880 — Hydrocarbon Storage – Drive Off Malfunction
• PACCAR Fault Code P3881 — PM Sensor Temperature Probe – Out of Range, at Ignition ON
• PACCAR Fault Code P3882 — EAS-4 ECU – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (31) or Pin (46) or Pin (47)
• PACCAR Fault Code P3883 — EAS-4 ECU – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (31) or Pin (46) or Pin (47)
• PACCAR Fault Code P3885 — Intake Module Fuel Pressure – Data Valid But Too High
• PACCAR Fault Code P3886 — Intake Module Fuel Pressure – Data Valid But Too Low
• PACCAR Fault Code P3887 — PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3888 — PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3890 — Tank Heater Valve – Short Circuit to Supply or Open Circuit on ECU (D442) Pin (60)
• PACCAR Fault Code P3891 — Tank Heater Valve – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (60)
• PACCAR Fault Code P3892 — DEF Tank Temperature – Not Increased When Commanded
• PACCAR Fault Code P3893 — DEF Level – Short Circuit to Supply or Open Circuit
• PACCAR Fault Code P3894 — DEF Level – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3895 — DEF Tank Temperature Sensor – Short Circuit to Supply or Open Circuit
• PACCAR Fault Code P3898 — DEF Tank Heating – Failed to Thaw
• PACCAR Fault Code P3899 — DEF Tank Temperature – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3900 — DEF Tank Temperature Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3901 — DEF Pressure – Data Valid But Too High, Absolute Pressure
• PACCAR Fault Code P3902 — DEF Dosing Rate (Actual) – Data Valid But Too Low
• PACCAR Fault Code P3903 — DEF Dosing Rate (Actual) – Data Valid But Too High
• PACCAR Fault Code P3904 — Pump Module – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (59)
• PACCAR Fault Code P3905 — Pump Module – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (59)
• PACCAR Fault Code P3906 — Heater Element DEF Pressure Pipe – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (24
• PACCAR Fault Code P3907 — Heater Element DEF Pressure Pipe – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (24)
• PACCAR Fault Code P3908 — Heater Element DEF Return Pipe – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (25)
• PACCAR Fault Code P3909 — Heater Element DEF Return Pipe – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (25)
• PACCAR Fault Code P3910 — Heater Element DEF Inlet Pipe – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (26)
• PACCAR Fault Code P3911 — Heater Element DEF Inlet Pipe – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (26)
• PACCAR Fault Code P3912 — Pump Module – Unable to Prime
• PACCAR Fault Code P3913 — NOx Sensor After Catalyst – Data Not Rational, Drifted Low
• PACCAR Fault Code P3914 — NOx Sensor After Catalyst – Data Not Rational, Drifted High
• PACCAR Fault Code P3915 — NOx Sensor After Catalyst – Heating Error
• PACCAR Fault Code P3916 — NOx Sensor After Catalyst – Power Supply Incorrect
• PACCAR Fault Code P3917 — NOx Sensor After Catalyst – Error
• PACCAR Fault Code P3918 — DEF Pressure – Data Valid But Too Low, Absolute Pressure
• PACCAR Fault Code P3919 — DEF Quality – Fluid Type Unknown From DEF Quality Sensor
• PACCAR Fault Code P3920 — DEF Quality Sensor – Temperature Difference, Too High
• PACCAR Fault Code P3921 — CAN Communication – Timeout From NOx Sensor After Catalyst
• PACCAR Fault Code P3922 — NOx Sensor After Catalyst – Value Not Changing When Expected
• PACCAR Fault Code P3924 — NOx Sensor After Catalyst – Out of Calibration
• PACCAR Fault Code P3925 — DEF Pressure – Mechanical Failure, Out of Adjustment
• PACCAR Fault Code P3926 — DEF Pressure – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3927 — NOx Sensor After Catalyst – Data Valid But Too High
• PACCAR Fault Code P3928 — NOx Sensor After Catalyst – O₂ Concentration, Too Low
• PACCAR Fault Code P3929 — NOx Sensor After Catalyst – Persist, Not Valid
• PACCAR Fault Code P3930 — Diesel Oxidation Catalyst (DOC) Efficiency – Data Valid But Too Low
• PACCAR Fault Code P3931 — DEF Quality Sensor ECU – Internal Error
• PACCAR Fault Code P3932 — DEF Quality Sensor Temperature – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3933 — DEF Quality Sensor Temperature – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3934 — DEF Quality Sensor Concentration – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3935 — DEF Quality Sensor Concentration – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3936 — DEF Tank Sensor ECU – Temperature Too High
• PACCAR Fault Code P3937 — DEF Quality – Persist, Not Valid
• PACCAR Fault Code P3938 — Tank Heater Valve – Stuck in Open Position
• PACCAR Fault Code P3941 — DEF Tank Level Sensor – Internal Error
• PACCAR Fault Code P3942 — Exhaust Gas Temperature Sensors ECU – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3943 — Exhaust Gas Temperature Sensors ECU – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3944 — Exhaust Gas Temperature DPF – Data Valid But Too High
• PACCAR Fault Code P3945 — CAN Communication – Timeout From DOC/DPF Temperature Sensors ECU
• PACCAR Fault Code P3951 — CAN Communication – Timeout From DEF Quality Sensor
• PACCAR Fault Code P3955 — Exhaust Gas Temperature Before DOC – Data Valid But Too High
• PACCAR Fault Code P3962 — DEF Quality – DEF Concentration Too High
• PACCAR Fault Code P3963 — DEF Quality – Abnormal Rate of Change
• PACCAR Fault Code P3964 — DEF Quality – DEF Concentration Too Low, Moderately Severe Level
• PACCAR Fault Code P3967 — EAS-4 Sensor Power Supply – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (54)
• PACCAR Fault Code P3968 — EAS-4 Sensor Power Supply – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (54)
• PACCAR Fault Code P3969 — EAS-4 Sensor Power Supply – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (14)
• PACCAR Fault Code P3970 — EAS-4 Sensor Power Supply – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (14)
• PACCAR Fault Code P3971 — NOx Sensor After Catalyst – O₂ Concentration, Too High
• PACCAR Fault Code P3972 — NOx Sensor After Catalyst – O₂ Concentration, Too Low
• PACCAR Fault Code P3973 — NOx Sensor After Catalyst – O₂ Concentration, Reacting Too Slow
• PACCAR Fault Code P3975 — DEF Pipe Heating Relay – Voltage Too High or Short Circuit to Supply on ECU (D442) Pin (58)
• PACCAR Fault Code P3976 — DEF Pipe Heating Relay – Voltage Too Low or Short Circuit to Ground on ECU (D442) Pin (58)
• PACCAR Fault Code P3977 — NOx Sensor After Catalyst – Heating Failed During Warm Up
• PACCAR Fault Code P3978 — SCR Exhaust Gas Temperature Sensors ECU – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3979 — SCR Exhaust Gas Temperature Sensors ECU – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3980 — SCR Exhaust Gas Temperature Sensors ECU – Data Valid But Too High
• PACCAR Fault Code P3981 — CAN – Time-Out From SCR Exhaust Gas Temperature Sensors ECU
• PACCAR Fault Code P3982 — Exhaust Gas Temperature After DPF or SCR Catalyst – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3983 — Exhaust Gas Temperature After SCR Catalyst – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3984 — CAN Communication – Timeout From Vehicle Control System
• PACCAR Fault Code P3985 — Pump Module Power Supply – Current Too Low or Open Circuit on ECU (D442) Pin (4)
• PACCAR Fault Code P3986 — Pump Module Power Supply – Current Too High or Short Circuit to Ground on ECU (D442) Pin (4)
• PACCAR Fault Code P3987 — Exhaust Gas Temperature Sensors ECU – Internal Error
• PACCAR Fault Code P3988 — Fuel Dosing Valve – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3989 — Exhaust Gas Temperature After SCR Catalyst – Internal Error
• PACCAR Fault Code P3990 — Exhaust Gas Temperature Sensors ECU Power Supply – Interrupted
• PACCAR Fault Code P3991 — Exhaust Gas Temperature Sensors ECU – Software Verification Incorrect
• PACCAR Fault Code P3992 — Pump Module Motor Duty Cycle – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3993 — Exhaust Gas Temperature Before SCR Catalyst – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3994 — Exhaust Gas Temperature Before SCR Catalyst – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3995 — Fuel Shutoff Valve Orifice – Plugged
• PACCAR Fault Code P3996 — Pump Module Return Pipe – Blocked
• PACCAR Fault Code P3997 — Diesel Particulate Filter (DPF) – Ash Level, Least Severe
• PACCAR Fault Code P3998 — SCR Exhaust Gas Temperature Sensors ECU – Internal Error
• PACCAR Fault Code P3999 — Exhaust Gas Temperature Before SCR Catalyst – Temperature Difference
• PACCAR Fault Code U0011 — CAN Communication – Hardware or Software Malfunction on V-CAN2
• PACCAR Fault Code U0101 — CAN – Message (ETC1) Time-Out From Transmission System
• PACCAR Fault Code U0103 — CAN – Message (ETC2) Time-Out From Transmission System
• PACCAR Fault Code U0104 — CAN – Message (CCVS) Time-Out From Vehicle Control System
• PACCAR Fault Code U0105 — CAN – Message (TESTRUN_INFO) Time-Out From Aftertreatment System
• PACCAR Fault Code U0106 — CAN – Message (CCVS_EBS) Time-Out From Brake System
• PACCAR Fault Code U0120 — CAN – Message (ETC7) Time-Out From Transmission System
• PACCAR Fault Code U0129 — CAN – Message (EBC1) Time-Out from Right Hand Stalk
• PACCAR Fault Code U0133 — CAN – Message (VDC1) Time-Out From Brake System
• PACCAR Fault Code U0141 — CAN – Message (TCO1) Time-Out From Tachograph
• PACCAR Fault Code U0143 — CAN – Message (EEC2) Time-Out From Vehicle Control System
• PACCAR Fault Code U0155 — CAN – Message (PROBA_BBM_to_Eng) Time-Out From Body Builder Module
• PACCAR Fault Code U0156 — CAN – Message (PROPB VIC) Time-Out From Vehicle Control System
• PACCAR Fault Code U0157 — CAN – Message (AMB) Time-Out From Vehicle Control System
• PACCAR Fault Code U0404 — CAN Communication – Message (ETC2) Out of Range, Selected Gear From Transmission System
• PACCAR Fault Code U1006 — HC Contamination in the Emission Aftertreatment System – Detected, Most Severe
• PACCAR Fault Code U1011 — CAN Communication – Hardware or Software Malfunction on E-CAN
• PACCAR Fault Code U1013 — CAN Communication – Message (A1DOC) Out of Range, DOC Intake Gas Temperature From Aftertreatment System
• PACCAR Fault Code U1014 — CAN Communication – Hardware or Software Malfunction on V-CAN1
• PACCAR Fault Code U1015 — CAN Communication – Hardware or Software Malfunction on A-CAN
• PACCAR Fault Code U1016 — CAN – Message (A1DOC) Time-Out From Aftertreatment System
• PACCAR Fault Code U1047 — VTG Turbocharger Actuator Wiping – Out of Range
• PACCAR Fault Code U1048 — VTG Turbocharger Actuator Position – Incorrect, (in SCR Heating Mode)
• PACCAR Fault Code U1049 — VTG Turbocharger Actuator Position – Incorrect, (Not in SCR Heating Mode)
• PACCAR Fault Code U104C — VTG Turbocharger Actuator – CAN Communication Error
• PACCAR Fault Code U104F — VTG Turbocharger Actuator – Temperature, Too High
• PACCAR Fault Code U1052 — VTG Actuator Position – Incorrect
• PACCAR Fault Code U1069 — Inlet Air Pressure Before Compressor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U1070 — CAN Communication – Message (AMB) Out of Range, Ambient Temperature From Vehicle Control System
• PACCAR Fault Code U1071 — Inlet Air Humidity Before Compressor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U1073 — Humidity Sensor – CAN, Message Time-Out
• PACCAR Fault Code U1074 — Inlet Air Temperature Before Compressor – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U1105 — CAN Communication – Message (BBM_to_Eng) Out of Range, Engine Stop From Body Builder Module
• PACCAR Fault Code U1110 — CAN – Message (RC_DR) Time-Out From Retarder System
• PACCAR Fault Code U1112 — CAN – Message (SCR1) Time-Out From Aftertreatment System
• PACCAR Fault Code U1114 — CAN – Message (AT1T1I) Time-Out, DEF Tank Information From Aftertreatment System
• PACCAR Fault Code U1118 — CAN Communication – Message (EXH_GAS_CORR) Out of Range, NOx After SCR Reading Stable From Aftertreatment System
• PACCAR Fault Code U111A — CAN Communication – Message (EXH_GAS_CORR) Out of Range, Engine Out NOx Reading Stable From Aftertreatment System
• PACCAR Fault Code U111B — CAN Communication – Message (EXH_GAS_CORR) Out of Range, O2 Concentration Before Catalyst (Corrected) From Aftertreatment System
• PACCAR Fault Code U111C — CAN Communication – Message (EXH_GAS_CORR) Out of Range, Engine Out NOx Corrected From Aftertreatment System
• PACCAR Fault Code U111D — CAN – Message (EXH_GAS_CORR) Time-Out From Aftertreatment System
• PACCAR Fault Code U1120 — CAN – Message (TSC1_BE) Time-Out From Brake System
• PACCAR Fault Code U1122 — CAN – Message (TSC1_TE) Time-Out From Transmission System
• PACCAR Fault Code U1124 — CAN – Message (TSC1_VE) Time-Out From Vehicle Control System
• PACCAR Fault Code U1126 — CAN – Message (TSC1_SE) Time-Out From Body Builder Module
• PACCAR Fault Code U112A — CAN – Message (ACM) Time-Out From Aftertreatment System
• PACCAR Fault Code U112C — CAN Communication – Message (AT1FC1) Out of Range, Fuel Rate From Aftertreatment System
• PACCAR Fault Code U112D — CAN – Message (AT1FC1) Time-Out From Aftertreatment System
• PACCAR Fault Code U112F — CAN Communication – Message (AT1HI) Out of Range, Total Fuel Used From Aftertreatment System
• PACCAR Fault Code U1130 — CAN Communication – Message (AT1HI) Out of Range, Distance Between Active DPF Regenerations From Aftertreatment System
• PACCAR Fault Code U1132 — CAN – Message (CM1) Time-Out From Vehicle Control System
• PACCAR Fault Code U1134 — CAN – Message (A1SCRDSR2) Time-Out From Aftertreatment System
• PACCAR Fault Code U1136 — CAN – Message (HRW) Time-Out From Brake System
• PACCAR Fault Code U1137 — CAN Communication – Message (A1SCRDSI2) Out of Range, DEF Pipe Heater 4 State From Aftertreatment System
• PACCAR Fault Code U1138 — CAN – Message (TSC_AE) Time-Out From Brake System
• PACCAR Fault Code U113A — CAN – Message (AT1HI) Time-Out From Aftertreatment System
• PACCAR Fault Code U113C — CAN Communication – Message (A1SCRDSI2) Out of Range, DEF Pipe Heater 1 State From Aftertreatment System
• PACCAR Fault Code U113D — CAN – Message (A1SCRDSI2) Time-Out From Aftertreatment System
• PACCAR Fault Code U113F — CAN Communication – Message (A1SCREGT) Out of Range, SCR Catalyst Outlet Gas Temperature From Aftertreatment System
• PACCAR Fault Code U1144 — CAN – Message (TD) Time-Out From Tachograph
• PACCAR Fault Code U1145 — CAN – Message (A1SCRRSI) Time-Out From Aftertreatment System
• PACCAR Fault Code U1147 — CAN – Message (A1SCRRSI) Time-Out From Aftertreatment System
• PACCAR Fault Code U1149 — CAN – Message (DCUST1) Time-Out From Aftertreatment System
• PACCAR Fault Code U114A — CAN – Message (A1SCREGT) Time-Out From Aftertreatment System
• PACCAR Fault Code U114D — CAN – Message (A1SCRDSI1) Time-Out From Aftertreatment System
• PACCAR Fault Code U1150 — CAN – Message (EBC1) Time-Out From Brake System
• PACCAR Fault Code U1154 — CAN – Message (B) Time-Out From Brake System
• PACCAR Fault Code U1159 — VTG Turbocharger Actuator – CAN, Message Time-Out
• PACCAR Fault Code U1160 — VTG Turbocharger Actuator Control – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U1161 — CAN – Message (A1SCRAI2) Time-Out From Aftertreatment System
• PACCAR Fault Code U1163 — CAN Communication – Message (A1SCRAI2) Out of Range, SCR Intermediate NH3 From Aftertreatment System
• PACCAR Fault Code U1164 — CAN Communication – Message (A1SCRAI2) Out of Range, SCR Intermediate NH3 Reading Stable From Aftertreatment System
• PACCAR Fault Code U1165 — CAN – Message (AT1S) Time-Out From Aftertreatment System
• PACCAR Fault Code U1167 — CAN Communication – Message (AT1S) Out of Range, Soot Load Percent From Aftertreatment System
• PACCAR Fault Code U1168 — CAN – Message (DPFC1) Time-Out From Aftertreatment System
• PACCAR Fault Code U1179 — CAN Communication – Message (PROPB_VIC) Out of Range
• PACCAR Fault Code U117A — CAN – Message (A1SCREGT2) Time-Out From Aftertreatment System
• PACCAR Fault Code U117C — CAN Communication – Message (A1SCREGT2) Out of Range, Intermediate Gas Temperature From Aftertreatment System
• PACCAR Fault Code U1184 — CAN Communication – Message (CCVS) Out of Range, Cruise Control Enable Switch From Vehicle Control System
• PACCAR Fault Code U1188 — CAN Communication – Message (EBC2) Out of Range, Front Axle Speed From Brake System
• PACCAR Fault Code U1190 — CAN – Message (ERC1_DR) Time-Out From Retarder System
• PACCAR Fault Code U1194 — CAN – Message (DD) Time-Out From Vehicle Control System
• PACCAR Fault Code U1198 — CAN – Message (EBC2) Time-Out From Brake System
• PACCAR Fault Code U1199 — CAN Communication – Message (AT1S) Out of Range, Soot Load Regeneration Threshold From Body Builder Module
• PACCAR Fault Code U1208 — CAN – Message (PTO) Time-Out From Vehicle Control System
• PACCAR Fault Code U1404 — CAN Communication – Message (ETC2) Out of Range, Engaged Gear From Transmission System
• PACCAR Fault Code U1406 — CAN Communication – Message (ACC1) Out of Range, Adaptive Cruise Control Mode From Advanced Emergency Braking System
• PACCAR Fault Code U1407 — CAN Communication – Message (ACC1) Out of Range, Adaptive Cruise Control Set Speed From Advanced Emergency Braking System
• PACCAR Fault Code U1409 — VTG Turbocharger Actuator State – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U140A — VTG Turbocharger Actuator Effort – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U142F — CAN Communication – Message (ACM_to_Eng) Out of Range, Estimated Pre-DOC Pressure From Aftertreatment System
• PACCAR Fault Code U1501 — CAN Communication – Message (TCO1) Out of Range, Output Shaft Speed From Tachograph
• PACCAR Fault Code U1502 — CAN Communication – Message (TCO1) Out of Range, Vehicle Speed From Tachograph
• PACCAR Fault Code U153B — CAN Communication – Message (PTO) Out of Range, Engine PTO Resume Switch From Vehicle Control System
• PACCAR Fault Code U1544 — CAN Communication – Message (ERC1_DR) Out of Range, Retarder Torque Actual Percent From Retarder System
• PACCAR Fault Code U1545 — CAN Communication – Message (ERC1_DR) Out of Range, Drivers Demand Retarder – Percent Torque From Retarder System
• PACCAR Fault Code U1546 — CAN Communication – Message (ERC1_DR) Out of Range, Intended Retarder Percent Torque From Retarder System
• PACCAR Fault Code U1547 — CAN Communication – Message (ERC1_DR) Out of Range, Retarder Selection, Non-Engine From Retarder System
• PACCAR Fault Code U1548 — CAN Communication – Message (ETC1) Out of Range, Transmission Output Shaft Speed From Transmission System
• PACCAR Fault Code U1549 — CAN Communication – Message (ETC1) Out of Range, Transmission Torque Converter Lockup Engaged From Transmission System
• PACCAR Fault Code U1550 — CAN Communication – Message (RC_DR) Out of Range, Reference Retarder Torque From Retarder System
• PACCAR Fault Code U1551 — CAN Communication – Message (VDC1) Out of Range, Rollover Protection Active (Brake) From Brake System
• PACCAR Fault Code U1552 — CAN Communication – Message (VDC1) Out of Range, Rollover Protection Active (Engine) From Brake System
• PACCAR Fault Code U1553 — CAN Communication – Message (VDC1) Out of Range, Yaw Control Active (Brake) From Brake System
• PACCAR Fault Code U1554 — CAN Communication – Message (VDC1) Out of Range, Yaw Control Active (Engine) From Brake System
• PACCAR Fault Code U1562 — CAN Communication – Message (ACM_Limits) Out of Range, Turbine Outlet Flow Low Target Request From Aftertreatment System
• PACCAR Fault Code U1563 — CAN Communication – Message (ACM_Limits) Out of Range, Turbine Outlet Flow Low Limit Request From Aftertreatment System
• PACCAR Fault Code U1564 — CAN Communication – Message (ACM_Limits) Out of Range, Turbine Outlet Temperature Low Target Request From Aftertreatment System
• PACCAR Fault Code U1565 — CAN Communication – Message (ACM_Limits) Out of Range, Turbine Outlet Temperature Upper Limit Request From Aftertreatment System
• PACCAR Fault Code U1566 — CAN – Message (ACM_LIMITS) Time-Out From Aftertreatment System
• PACCAR Fault Code U1571 — EGR Valve Module – CAN, Message Time-Out
• PACCAR Fault Code U1572 — EGR Valve Module State – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1573 — EGR Valve Module Position – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1574 — EGR Valve Module Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1575 — EGR Valve Module Effort – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1577 — BPV Actuator – CAN, Message Time-Out
• PACCAR Fault Code U1578 — BPV Actuator Effort – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1579 — BPV Actuator Position – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U157A — BPV Actuator State – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U157B — BPV Actuator Temperature – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code U1700 — CAN Communication – Message (AT1T1I) Out of Range, DEF Tank Level From Aftertreatment System
• PACCAR Fault Code U1702 — CAN Communication – Message (AT1T1I) Out of Range, DEF Tank Heating From Aftertreatment System
• PACCAR Fault Code U1703 — Remote Pedal – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code U1711 — CAN – Message (AT1IMG) Time-Out From Aftertreatment System
• PACCAR Fault Code U1716 — CAN – Message (AT1OG2) Time-Out From Aftertreatment System
• PACCAR Fault Code U1721 — CAN – Message (VEP1) Time-Out From Aftertreatment System
• PACCAR Fault Code U1722 — CAN Communication – Message (VEP1) Data Error, Power Supply Value From Aftertreatment System
• PACCAR Fault Code U1726 — CAN – Message (AT1GP) Time-Out From Aftertreatment System
• PACCAR Fault Code U1728 — CAN – Message (AT1OG1) Time-Out From Aftertreatment System
• PACCAR Fault Code U1730 — CAN Communication – Message (AT1OG1) Out of Range, NOx After SCR From Aftertreatment System
• PACCAR Fault Code U177B — Accelerator Pedal 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B41)
• PACCAR Fault Code U177C — Accelerator Pedal 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B41)
• PACCAR Fault Code U177D — Accelerator Pedal Sensor 1 Duty Cycle – Data Valid But Too High on ECU (D420) Pin (B41)
• PACCAR Fault Code U177E — Accelerator Pedal Sensor 1 Duty Cycle – Data Valid But Too Low on ECU (D420) Pin (B41)
• PACCAR Fault Code U177F — Accelerator Pedal 1 Frequency – Data Valid But Too High on ECU (D420) Pin (B41)
• PACCAR Fault Code U1780 — CAN – Message (TSC1 yye) Time-Out from Advanced Emergency Braking System
• PACCAR Fault Code U1781 — CAN – Message (TSC_PE) Time-Out From Advanced Emergency Braking System
• PACCAR Fault Code U1782 — CAN – Message (FD) Time-Out From Electronic Fan
• PACCAR Fault Code U1783 — CAN Communication – Message (FD) Rate Too High, Fan Speed From Electronic Fan
• PACCAR Fault Code U1784 — CAN Communication – Message (FD) Out of Range, Fan Speed From Electronic Fan
• PACCAR Fault Code U1785 — CAN – Message (PROPB_EST) Time-Out From Retarder System
• PACCAR Fault Code U1787 — CAN Communication – Message (PROPB_EST) Out of Range, Coolant Temperature From Retarder System
• PACCAR Fault Code U1788 — CAN Communication – Message (PROPB_EST) Not Available, Coolant Temperature From Retarder System
• PACCAR Fault Code U1789 — CAN Communication – Message (BBM_to_Eng) Out of Range, Starter Interrupt From Body Builder Module
• PACCAR Fault Code U178A — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC Enable From Body Builder Module
• PACCAR Fault Code U178B — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC Resume or Set From Body Builder Module
• PACCAR Fault Code U178C — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC n Variable From Body Builder Module
• PACCAR Fault Code U178D — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC n Variable From Body Builder Module
• PACCAR Fault Code U178E — CAN Communication – Message (BBM_to_Eng) Out of Range, Application Speed Limiter Switch 1 From Body Builder Module
• PACCAR Fault Code U178F — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC n2 From Body Builder Module
• PACCAR Fault Code U1790 — CAN Communication – Message (BBM_to_Eng) Out of Range, ESC n3 From Body Builder Module
• PACCAR Fault Code U1791 — CAN Communication – Message (BBM_to_Eng) Out of Range, Application Speed Limiter Switch 2 From Body Builder Module
• PACCAR Fault Code U1792 — CAN Communication – Message (BBM_to_Eng) Out of Range, Throttle Integration Switch From Body Builder Module
• PACCAR Fault Code U1793 — CAN Communication – Message (PROPB_AST) Out of Range, Clutch Switch From Transmission System
• PACCAR Fault Code U1794 — CAN Communication – Message (PROPB_AST) Not Available, Clutch Percent Torque From Transmission System
• PACCAR Fault Code U1798 — CAN Communication – Message (EBC1) Out of Range, Engine Retarder Selection From Brake System
• PACCAR Fault Code U179E — CAN – Message (TSC1 xxe) Time-Out From Advanced Emergency Braking System
• PACCAR Fault Code U179F — CAN – Message (TSC1 HCE) Time-Out From Aftertreatment System
• PACCAR Fault Code U17A0 — Accelerator Pedal 1 Frequency – Data Valid But Too Low on ECU (D420) Pin (B41)
• PACCAR Fault Code U17A1 — Accelerator Pedal 2 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A2 — Accelerator Pedal 2 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A3 — Accelerator Pedal Sensor 2 Duty Cycle – Data Valid But Too High on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A4 — Accelerator Pedal Sensor 2 Duty Cycle – Data Valid But Too Low on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A5 — Accelerator Pedal 2 Frequency – Data Valid But Too High on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A6 — Accelerator Pedal 2 Frequency – Data Valid But Too Low on ECU (D420) Pin (B45)
• PACCAR Fault Code U17A7 — Accelerator Pedal – Sensor 1 and 2 Synchronization Malfunction
• PACCAR Fault Code U17A8 — Accelerator Pedal – Malfunction
• PACCAR Fault Code U17A9 — Accelerator Pedal Operation – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U17B0 — Water in Fuel Drain Control – Short Circuit to Supply on ECU (D420) Pin (A40)
• PACCAR Fault Code U17B1 — Water in Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A40)
• PACCAR Fault Code U17B3 — Water in Fuel Drain Control – Short Circuit to Supply on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B4 — Water in Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B5 — Water in Fuel Drain Control – Current Too Low or Open Circuit on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B6 — CAN Communication – Message (TSC1_AE) Data Error From Advanced Emergency Braking System
• PACCAR Fault Code U17BA — VTG Turbocharger Actuator Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code U17C4 — CAN – Message (TSC1_BR) Time-Out From Brake System
• PACCAR Fault Code U17C5 — CAN – Message (TSC1_BXR) Time-Out From Brake System
• PACCAR Fault Code U17C6 — CAN – Message (TSC1_DXR) Time-Out From Retarder System
• PACCAR Fault Code U17C7 — CAN – Message (TSCI_TXR) Time-Out From Transmission System
• PACCAR Fault Code U17C8 — CAN – Message (TSC1_SR) Time-Out From Vehicle Control System
• PACCAR Fault Code U17C9 — CAN – Message (TSC1_SXR) Time-Out
• PACCAR Fault Code U17CD — CAN Communication – Message (TSCI_TXR) Message Count
• PACCAR Fault Code U17D4 — Accelerator Pedal Sensor 1 Power Supply – Message (TSC1_SR) Message Checksum From Vehicle Control System
• PACCAR Fault Code U17DC — Humidity Sensor – CAN, Message Time-Out
• PACCAR Fault Code U17DD — Humidity Sensor – CAN Communication Error, Message Rate Too High
• PACCAR Fault Code U17DE — Temperature Before Compressor – Data Erratic, Intermittent or Incorrect From Humidity Sensor
• PACCAR Fault Code U17DF — Pressure Before Compressor – Data Erratic, Intermittent or Incorrect From Humidity Sensor
• PACCAR Fault Code U17E0 — Humidity Before Compressor – Data Erratic, Intermittent or Incorrect From Humidity Sensor
• PACCAR Fault Code U17E1 — Humidity Before Compressor – Data Erratic, Intermittent or Incorrect From Humidity Sensor
• PACCAR Fault Code U17E3 — CAN – Message (VECU_TRQ_1) Time-Out From Vehicle Control System
• PACCAR Fault Code U17E4 — CAN – Message (VECU_TO_ENG) Time-Out From Vehicle Control System
• PACCAR Fault Code U17E5 — CAN Communication – Message (VECU_TO_ENG) Rate Too High From Vehicle Control System
• PACCAR Fault Code U17E6 — CAN Communication – Message (VECU_TO_ENG) Out of Range From VECU
• PACCAR Fault Code U17E7 — CAN – Message (VECU_TRQ_2) Time-Out From Vehicle Control System
• PACCAR Fault Code U17E8 — CAN Communication – Message (VECU_TRQ_2) Rate Too High From Vehicle Control System
• PACCAR Fault Code U17E9 — CAN Communication – Message (VECU_TRQ_2) Out of Range From Vehicle Control System
• PACCAR Fault Code U17EA — CAN – Message (VECU_VTM1) Time-Out From Vehicle Control System
• PACCAR Fault Code U17EB — CAN Communication – Message (VECU_VTM1) Rate Too High From Vehicle Control System
• PACCAR Fault Code U17EC — CAN Communication – Message (VECU_VTM1) Out of Range From Vehicle Control System
• PACCAR Fault Code U17ED — CAN Communication – Message (VECU_VTM1) Out of Range From Vehicle Control System
• PACCAR Fault Code U17EE — CAN Communication – Message (VECU_VTM1) Out of Range From Vehicle Control System
• PACCAR Fault Code U17EF — CAN Communication – Message (VECU_VTM1) Out of Range From Vehicle Control System
• PACCAR Fault Code U17F0 — CAN – Message (VECU_VTM2) Time-Out From Vehicle Control System
• PACCAR Fault Code U17F1 — CAN Communication – Message (VECU_VTM2) Rate Too High From Vehicle Control System
• PACCAR Fault Code U17F2 — CAN Communication – Message (VECU_VTM2) Out of Range From Vehicle Control System
• PACCAR Fault Code U17F3 — CAN Communication – Message (VECU_VTM2) Out of Range From Vehicle Control System
• PACCAR Fault Code U17F4 — CAN Communication – Message (TSC1_VC1_P1) Data Error From Vehicle Control System
• PACCAR Fault Code U17F5 — CAN – Message (TSC1_VC1_P1) Time-Out From Vehicle Control System
• PACCAR Fault Code U17F6 — CAN Communication – Message (TSC1_VC1_P2) Data Error From Vehicle Control System
• PACCAR Fault Code U17F7 — CAN – Message (TSC1_VC1_P2) Time-Out From Vehicle Control System
• PACCAR Fault Code U17F8 — CAN Communication – Message (TSC1_VC1_P3) Data Error From Vehicle Control System
• PACCAR Fault Code U17F9 — CAN – Message (TSC1_VC1_P3) Time-Out From Vehicle Control System
• PACCAR Fault Code U17FA — CAN Communication – Message (TSC1_VC1_P4) Data Error From Vehicle Control System
• PACCAR Fault Code U17FB — CAN – Message (TSC1_VC1_P4) Time-Out From Vehicle Control System
• PACCAR Fault Code U1801 — CAN Communication – Message (ACC1) Not Available, Forward Collision Warning From Advanced Emergency Braking System
• PACCAR Fault Code U1802 — VTG Turbocharger Actuator Power Supply – Data Valid But Too High
• PACCAR Fault Code U1805 — CAN – Message (ACC2) Time-Out From Vehicle Control System
• PACCAR Fault Code U1806 — CAN Communication – Message (ACM_to_Eng) Out of Range, Soot Level From Aftertreatment System
• PACCAR Fault Code U180A — CAN Communication – Message (CCVS_EBS) Out of Range, PTO Governor State From Brake System
• PACCAR Fault Code U180B — CAN Communication – Message (CCVS_EBS) Out of Range, Cruise Control Pause Switch From Brake System
• PACCAR Fault Code U180C — CAN Communication – Message (CVW) Out of Range, Gross Combination Vehicle Weight From Brake System
• PACCAR Fault Code U180E — CAN – Message (CVW) Time-Out From Brake System
• PACCAR Fault Code U1810 — CAN – Message (EAS_EI_AECD) Time-Out From Aftertreatment System
• PACCAR Fault Code U1812 — CAN – Message (EAS_SYS_INFO) Time-Out From Aftertreatment System
• PACCAR Fault Code U1813 — CAN Communication – Message (EBC1_EBS) Out of Range, ASR Engine Control Active From Brake System
• PACCAR Fault Code U1814 — CAN Communication – Message (EBC1_CECU) Out of Range, ASR Brake Control Active From Brake System
• PACCAR Fault Code U1815 — CAN Communication – Message (EBC2) Out of Range, Relative Speed, Front Axle, Left Wheel From Brake System
• PACCAR Fault Code U1816 — CAN Communication – Message (EBC2) Out of Range, Relative Speed, Front Axle, Right Wheel From Brake System
• PACCAR Fault Code U1817 — CAN Communication – Message (ETC1) Not Available, Transmission Shift in Process From Transmission System
• PACCAR Fault Code U1818 — CAN Communication – Message (ETC1) Out of Range, Transmission Shift in Process From Transmission System
• PACCAR Fault Code U1819 — CAN Communication – Message (ETC1) Not Available, Engine Momentary Overspeed Enable From Transmission System
• PACCAR Fault Code U181A — CAN Communication – Message (ETC1) Out of Range, Engine Momentary Overspeed Enable From Transmission System
• PACCAR Fault Code U181B — CAN Communication – Message (ETC1) Not Available, Progressive Shift Disable From Transmission System
• PACCAR Fault Code U181C — CAN Communication – Message (ETC1) Out of Range, Progressive Shift Disable From Transmission System
• PACCAR Fault Code U181D — CAN Communication – Message (ETC7) Not Available, Transmission Engine Crank Enable From Transmission System
• PACCAR Fault Code U181E — CAN Communication – Message (ETC7) Out of Range, Transmission Engine Crank Enable From Transmission System
• PACCAR Fault Code U181F — CAN Communication – Message (PROPB_SW) Out of Range, Cruise Control Set Plus Switch From Steering Wheel Switches
• PACCAR Fault Code U1820 — CAN Communication – Message (PROPB_SW) Out of Range, Cruise Control Resume Min Switch From Steering Wheel Switches
• PACCAR Fault Code U1821 — CAN Communication – Message (PROPB_SW) Out of Range, Speed Functions Off Switch From Steering Wheel Switches
• PACCAR Fault Code U1822 — CAN Communication – Message (PROPB_SW) Out of Range, Downhill Speed Control Set Plus Switch From Steering Wheel Switches
• PACCAR Fault Code U1823 — CAN Communication – Message (PROPB_SW) Out of Range, Downhill Speed Control Resume Min Switch From Steering Wheel Switches
• PACCAR Fault Code U1824 — CAN Communication – Message (PROPB_SW) Out of Range, Variable Speed Limiter Set Switch From Steering Wheel Switches
• PACCAR Fault Code U1826 — CAN – Message (PROPB_SW) Time-Out From Steering Wheel Switches
• PACCAR Fault Code U1827 — CAN Communication – Message (PROPB_VIC) Not Available, Estimated Engine Parasitic Losses From Vehicle Control System
• PACCAR Fault Code U1828 — CAN Communication – Message (PROPB_VIC) Out of Range, Estimated Engine Parasitic Losses From Vehicle Control System
• PACCAR Fault Code U1829 — CAN Communication – Message (PROPB_VIC) Not Available, Secondary Retarder Switch From Vehicle Control System
• PACCAR Fault Code U182A — CAN Communication – Message (PROPB_VIC) Out of Range, Secondary Retarder Switch From Vehicle Control System
• PACCAR Fault Code U182C — CAN Communication – Message (PROPB_VIC) Out of Range, km/h, miles/h, Switch From Vehicle Control System
• PACCAR Fault Code U182E — CAN Communication – Message (PROPB_VIC) Not Available, Primary Retarder by Stalk On From Vehicle Control System
• PACCAR Fault Code U1830 — CAN Communication – Message (PROPB_VIC) Out of Range, Primary Retarder by Stalk Off From Vehicle Control System
• PACCAR Fault Code U1831 — CAN Communication – Message (PROPB_VIC) Not Available, Primary Retarder by Foot On From Vehicle Control System
• PACCAR Fault Code U1832 — CAN Communication – Message (PROPB_VIC) Out of Range, Primary Retarder by Foot On From Vehicle Control System
• PACCAR Fault Code U1833 — CAN Communication – Message (PROPB_VIC) Out of Range, Requested Percent Coolant Pump Speed from Vehicle Control System
• PACCAR Fault Code U1835 — VTG Turbocharger Actuator – CAN, Message Time-Out
• PACCAR Fault Code U1836 — CAN Communication – Message (PTO) Out of Range, PTO State from Vehicle Control System
• PACCAR Fault Code U1837 — CAN Communication – Message (PTO) Out of Range, Engine Remote PTO Governor Preprogrammed Speed Control Switch from Vehicle Control System
• PACCAR Fault Code U1838 — CAN Communication – Message (PTO) Out of Range, Engine PTO Governor Enable Switch from Vehicle Control System
• PACCAR Fault Code U1839 — CAN Communication – Message (PTO) Out of Range, Remote PTO Governor Preprogrammed Speed Control Switch No. 2 from Vehicle Control System
• PACCAR Fault Code U183B — CAN Communication – Message (TCFG2) Out of Range, Transmission Torque Limit from Transmission System
• PACCAR Fault Code U183C — CAN Communication – Message (TRF1) Out of Range, Transmission Oil Temperature from Transmission System
• PACCAR Fault Code U183E — CAN – Message (TRF1) Time-Out, Transmission Oil Temperature from Transmission System
• PACCAR Fault Code U183F — CAN Communication – Message (VDC1) Out of Range, Brake Light Request from Brake System
• PACCAR Fault Code U1841 — CAN – Message (VDC2) Time-Out from Brake System
• PACCAR Fault Code U1843 — CAN – Message (VDHR) Time-Out from Tachograph
• PACCAR Fault Code U1844 — CAN Communication – Message (AIR1) Out of Range, Air Compressor Status from Air Supply System
• PACCAR Fault Code U1846 — CAN – Message (AIR1) Time-Out from Air Supply System
• PACCAR Fault Code U1847 — CAN – Message (CVN CAL-ID) Time-Out, PCI ECU Software Verification
• PACCAR Fault Code U1848 — CAN – Message (CVN CAL-ID) Time-Out, EAS-4 ECU Software Verification
• PACCAR Fault Code U1849 — CAN – Message (CVN CAL-ID) Time-Out, NOx Sensor Before Catalyst Software Verification
• PACCAR Fault Code U184D — CAN Communication – PCI ECU Cannot Start Up Communication
• PACCAR Fault Code U184E — CAN Communication – Message (PROPB_SW) Not Available, Speed Function Off Switch from Steering Wheel Switches
• PACCAR Fault Code U1850 — CAN – Message (CVN CAL-ID) Time-Out, NOx Sensor After Catalyst Software Verification
• PACCAR Fault Code U1851 — CAN – Message (CVN CAL-ID) Time-Out, PM Sensor Software Verification
• PACCAR Fault Code U1852 — CAN – Message (CVN CAL-ID) Time-Out, DEF Quality Sensor Software Verification
• PACCAR Fault Code U1853 — CAN – Message (CVN CAL-ID) Time-Out, VTG Turbocharger Actuator Software Verification
• PACCAR Fault Code U1854 — CAN – Message (CVN CAL-ID) Time-Out, EGR Valve Module Software Verification
• PACCAR Fault Code U1855 — CAN – Message (CVN CAL-ID) Time-Out, BPV Actuator Software Verification
• PACCAR Fault Code U1856 — CAN – Message (CVN CAL-ID) Time-Out, Exhaust Gas Temperature Sensors ECU Software Verification
• PACCAR Fault Code U1857 — CAN – Message (CVN CAL-Out) Humidity Sensor Software Verification
• PACCAR Fault Code U185A — CAN – Message (A1DEFI) Time-Out, DEF Quality from Aftertreatment System
• PACCAR Fault Code U185C — CAN Communication – Message (A1DEFI) Out of Range, DEF Quality from Aftertreatment System
• PACCAR Fault Code U185E — CAN – Message (EPSI) Time-Out, PM Sensor from Aftertreatment System
• PACCAR Fault Code U185F — CAN Communication – Message (EPSI) Out of Range, PM Sensor from Aftertreatment System
• PACCAR Fault Code U186F — CAN Communication – Message (PROPB_SW) Not Available, Variable Speed Limiter Set Switch from Steering Wheel Switches
• PACCAR Fault Code U1870 — CAN – Message (PROPB_CECU) Time-Out, Soft Top Speed Limiter Switch from Vehicle Control System
• PACCAR Fault Code U1872 — CAN Communication – Message (PROPB_CECU) Out of Range, Soft Top Speed Limiter Switch from Vehicle Control System
• PACCAR Fault Code U1873 — CAN Communication – Message (ETC1) Out of Range, Gear Engaged from Transmission System
• PACCAR Fault Code U1874 — CAN Communication – Message (ETC2) Out of Range, Transmission Actual Gear Ratio from Transmission System
• PACCAR Fault Code U1875 — CAN Communication – Message (VDC1) Not Available, VDC Brake Light Request from Brake System
• PACCAR Fault Code U1876 — CAN Communication – Message (AIR1) Out of Range, Air Pressure Circuit 1 from Air Supply System
• PACCAR Fault Code U1877 — CAN Communication – Message (AIR1) Out of Range, Air Pressure Circuit 2 from Air Supply System
• PACCAR Fault Code U1878 — CAN Communication – Message (VEP4) Out of Range, Power Electronics Carrier Remaining Charge from Vehicle Control System
• PACCAR Fault Code U1879 — CAN Communication – Message (A1SCREGT) Out of Range, Exhaust Gas Temperature Before SCR Catalyst from Aftertreatment System
• PACCAR Fault Code U1880 — CAN Communication – Message (VDC2) Out of Range, Longitudinal Acceleration from Brake System
• PACCAR Fault Code U1881 — EAS-4 ECU Software Verification – Incorrect
• PACCAR Fault Code U1882 — NOx Sensor Before Catalyst Software Verification – Incorrect
• PACCAR Fault Code U1883 — NOx Sensor after Catalyst Software Verification – Incorrect
• PACCAR Fault Code U1884 — PM Sensor Software Verification – Incorrect
• PACCAR Fault Code U1885 — DEF Quality Sensor Software Verification – Incorrect
• PACCAR Fault Code U1886 — VTG Turbocharger Actuator Software Verification – Incorrect
• PACCAR Fault Code U1887 — EGR Valve Module Software Verification – Incorrect
• PACCAR Fault Code U1888 — BPV Actuator Software Verification – Incorrect
• PACCAR Fault Code U1889 — Exhaust Gas Temperature Sensors ECU Software Verification – Incorrect
• PACCAR Fault Code U188A — Humidity Sensor Software Verification – Incorrect
• PACCAR Fault Code U1890 — CAN Communication – Message (EBC1) Out of Range, Anti-Lock Brake System Active Brake System
• PACCAR Fault Code U1891 — CAN Communication – Message (EBC1) Not Available, Anti-Lock Brake System Active from Brake System
• PACCAR Fault Code U1892 — CAN – Message (PROPB_SCD_1) Time-Out from Predictive Cruise Control
• PACCAR Fault Code U1893 — CAN Communication – Message (PROPB_SCD_1) Rate Too High from Predictive Cruise Control
• PACCAR Fault Code U1894 — CAN Communication – Message (PROPB_SCD_1) Out of Range, Predictive Cruise Control Set Speed Offset from Predictive Cruise Control
• PACCAR Fault Code U1895 — CAN Communication – Message (PROPB_SCD_1) Out of Range, Vehicle Speed Control Override Request from Predictive Cruise Control
• PACCAR Fault Code U1896 — CAN Communication – Message (PROPB_SCD_1) Not Available, Predictive Cruise Control Set Speed Offset from Predictive Cruise Control
• PACCAR Fault Code U1897 — CAN Communication – Message (PROPB_SCD_1) Not Available, Vehicle Speed Control Override Request from Predictive Cruise Control
• PACCAR Fault Code U1898 — CAN Communication – Message (AT1IG1) Out of Range, O₂ Concentration Before Catalyst from NOx Sensor Before Catalyst
• PACCAR Fault Code U1900 — CAN – Message (DPFC2) Time-Out from Aftertreatment System
• PACCAR Fault Code U1901 — CAN Communication – Message (DPFC2) Rate Too High from Aftertreatment System
• PACCAR Fault Code U1902 — CAN Communication – Message (DPFC2) Out of Range, Fuel Rate from Aftertreatment System
• PACCAR Fault Code U1903 — CAN – Message (CCVS4) Time-Out from Vehicle Control System
• PACCAR Fault Code U1904 — CAN Communication – Message (CCVS4) Rate Too High from Vehicle Control System
• PACCAR Fault Code U1905 — CAN – Message (EC1_VECU) Time-Out from Vehicle Control System
• PACCAR Fault Code U1907 — CAN – Message (EEC2_VECU) Time-Out from Vehicle Control System
• PACCAR Fault Code U1909 — CAN – Message (EOI) Time-Out from Vehicle Control System
• PACCAR Fault Code U190A — CAN Communication – Message (EOI) Rate Too High from Vehicle Control System
• PACCAR Fault Code U190B — CAN – Message (ERC1_VECU) Time-Out from Vehicle Control System
• PACCAR Fault Code U190D — CAN – Message (ESR) Time-Out from Vehicle Control System
• PACCAR Fault Code U190F — CAN – Message (PCC1) Time-Out from Predictive Cruise Control
• PACCAR Fault Code U1910 — CAN Communication – Message (PCC1) Out of Range, Predictive Cruise Control Set Speed Offset from Predictive Cruise Control
• PACCAR Fault Code U1911 — CAN Communication – Message (PCC1) Out of Range, Vehicle Speed Control Override Request from Predictive Cruise Control
• PACCAR Fault Code U1912 — CAN Communication – Message (PCC1) Not Available, Predictive Cruise Control Set Speed Offset from Predictive Cruise Control
• PACCAR Fault Code U1913 — CAN Communication – Message (PCC1) Not Available, Vehicle Speed Control Override Request from Predictive Cruise Control
• PACCAR Fault Code U1914 — CAN – Message (SHUTDN) Time-Out from Vehicle Control System
• PACCAR Fault Code U1916 — CAN – Message (CCSS) Time-Out from Vehicle Control System
• PACCAR Fault Code U1918 — EAS-4 ECU Software Verification – Incorrect
• PACCAR Fault Code U1919 — NOx Sensor Before Catalyst Software Verification – Incorrect
• PACCAR Fault Code U191A — NOx Sensor After Catalyst Software Verification – Incorrect
• PACCAR Fault Code U191B — PM Sensor Software Verification – Incorrect
• PACCAR Fault Code U191C — DEF Quality Sensor Software Verification – Incorrect
• PACCAR Fault Code U191D — VTG Turbocharger Actuator Software Verification – Incorrect
• PACCAR Fault Code U191E — EGR Valve Module Software Verification – Incorrect
• PACCAR Fault Code U191F — BPV Actuator Software Verification – Incorrect
• PACCAR Fault Code U1920 — Exhaust Gas Temperature Sensors ECU Software Verification – Incorrect
• PACCAR Fault Code U1921 — Humidity Sensor Software Verification – Incorrect
• PACCAR Fault Code U1927 — CAN Communication – Message (A1DEFI) Out of Range, DEF Temperature from Aftertreatment System
• PACCAR Fault Code U1928 — CAN Communication – Message (A1DEFI) Out of Range, DEF Concentration from Aftertreatment System
• PACCAR Fault Code U1929 — CAN – Message (PTODE) Time-Out from VECU
• PACCAR Fault Code U192A — CAN Communication – Message (PTODE) Rate Too High from VECU
• PACCAR Fault Code U192B — CAN Communication – Message (ETC1) Out of Range, Torque Converter Lockup from Transmission System
• PACCAR Fault Code U192C — CAN Communication – Message (EPSI) Out of Range, PM Sensor Current from Aftertreatment System
• PACCAR Fault Code U192D — CAN Communication – Message (AT1HI) Out of Range, Total Regeneration Time from Aftertreatment System
• PACCAR Fault Code U192E — CAN Communication – Message (PTODE) Out of Range, PTO 1 Engaged from VECU
• PACCAR Fault Code U192F — CAN Communication – Message (PTODE) Out of Range, PTO Active State from VECU
• PACCAR Fault Code U1930 — CAN Communication – Message (PTODE) Not Available, PTO 1 Engaged from VECU
• PACCAR Fault Code U1931 — CAN Communication – Message (PTODE) Not Available, PTO Active State From VECU
• PACCAR Fault Code U1932 — CAN – Message (HCDSRB_EAS) Time-Out from Aftertreatment System
• PACCAR Fault Code U1933 — CAN Communication – Message (HCDSRB_EAS) Out of Range, HC Contamination Level from Aftertreatment System
• PACCAR Fault Code U1934 — CAN Communication – Message (HCDSRB_EAS) Not Available, HC Contamination Level from Aftertreatment System
• PACCAR Fault Code U1935 — CAN Communication – Message (PTODE) Out of Range, PTO 2 Engaged from VECU
• PACCAR Fault Code U1936 — CAN Communication – Message (PTODE) Out of Range, PTO Engine Flywheel Engaged from VECU
• PACCAR Fault Code P0045 — VTG Turbocharger Actuator – Position Error or Internal Error
• PACCAR Fault Code P0046 — VTG Turbocharger Actuator – Position Error or Internal Error
• PACCAR Fault Code P0049 — Turbo Speed – Higher than Overspeed Limit
• PACCAR Fault Code P0094 — Common Rail Pump Unit Control – Incorrect
• PACCAR Fault Code P00B7 — Coolant Pump Speed – Data Valid But Too Low When High Speed is Requested
• PACCAR Fault Code P0115 — Engine Coolant Temperature – Data Erratic, Intermittent or Incorrect during Overrun, at Ignition ON
• PACCAR Fault Code P0135 — Lambda Sensor Heater – Current Too Low or Open Circuit on ECU (D420) Pin (C46)
• PACCAR Fault Code P0149 — Fuel Injection Control – Malfunction Detected
• PACCAR Fault Code P0216 — Fuel Injection Control – Malfunction Detected
• PACCAR Fault Code P0221 — CAN Communication – Message (EEC2) Out of Range, Remote Accelerator Pedal Position
• PACCAR Fault Code P0298 — Engine Oil Temperature – Data Valid But Too High, Most Severe
• PACCAR Fault Code P0315 — Cylinder Unbalance – Detected
• PACCAR Fault Code P0541 — Grid Heater – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0542 — Grid Heater – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0543 — Grid Heater – Current Too Low or Open Circuit on ECU (D420) Pin (C72) or Pin (C49)
• PACCAR Fault Code P0562 — PCI ECU Power Supply – Data Valid But Too Low on ECU (D420) Pin (B61) or Pin (B62)
• PACCAR Fault Code P0567 — CAN Communication – Message (CCVS) Out of Range, Cruise Control Resume Switch from Vehicle Control System
• PACCAR Fault Code P0568 — CAN Communication – Message (CCVS) Out of Range, Cruise Control Set Switch from Vehicle Control System
• PACCAR Fault Code P0571 — CAN Communication – Message (CCVS) Out of Range, Brake Switch from Vehicle Control System
• PACCAR Fault Code P060A — PCI ECU – Internal Error
• PACCAR Fault Code P061B — Fuel Injection Control – Malfunction
• PACCAR Fault Code P064F — Fuel Injection Control – Malfunction
• PACCAR Fault Code P0698 — PCI ECU 5 V Sensor Supply – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P0699 — PCI ECU 5 V Sensor Supply – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P081C — CAN Communication – Message (CCVS_VIC) Out of Range, Park Brake Switch from Vehicle Control System
• PACCAR Fault Code P0833 — CAN Communication – Message (CCVS) Out of Range, Clutch Switch from Vehicle Control System
• PACCAR Fault Code P101C — BPV Position – Incorrect
• PACCAR Fault Code P101D — BPV Position – Incorrect
• PACCAR Fault Code P102F — BPV Actuator Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1030 — EGR Temperature – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1032 — Vehicle Speed Sensor – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1040 — Exhaust Gas Pressure After BPV – Data Valid But Too Low
• PACCAR Fault Code P1048 — Air Mass Flow – Data Valid But Too High, During Overrun
• PACCAR Fault Code P1049 — Air Mass Flow – Data Valid But Too Low During Overrun
• PACCAR Fault Code P104E — Exhaust Gas Pressure Before Turbine – Data Valid But Too Low, During Engine Braking
• PACCAR Fault Code P109C — Common Rail Pressure Release Valve – Current Too Low or Open Circuit on ECU (D420) Pin (C4)
• PACCAR Fault Code P1127 — Intercooler Temperature – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1133 — Lambda Sensor Heater – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C46)
• PACCAR Fault Code P1134 — Lambda Sensor Heater – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C46)
• PACCAR Fault Code P1135 — Lambda Sensor Heater – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C46)
• PACCAR Fault Code P1136 — Lambda Sensor Heater – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C46)
• PACCAR Fault Code P1137 — Lambda Sensor Heater Power Supply – Incorrect
• PACCAR Fault Code P1138 — Lambda Sensor Heater – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C46)
• PACCAR Fault Code P1139 — Lambda Sensor Calibration – Malfunction
• PACCAR Fault Code P113A — Lambda Sensor Temperature – Unable to Reach Target
• PACCAR Fault Code P113B — Lambda Sensor Controller – Incorrect
• PACCAR Fault Code P1167 — Fuel Temperature – Data Valid But Too High, Least Severe
• PACCAR Fault Code P1180 — Fuel Temperature – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1191 — Fuel Filter – Clogged
• PACCAR Fault Code P1194 — Fuel Filter – Very Clogged
• PACCAR Fault Code P1201 — Injector Solenoid Valve Cylinder 1 – Current Too Low or Open Circuit on ECU (D420) Pin (A1) and or Pin (A2)
• PACCAR Fault Code P1205 — Injector Solenoid Valve Cylinder 5 – Current Too Low or Open Circuit on ECU (D420) Pin (A3) and or Pin (A4)
• PACCAR Fault Code P1209 — Injector Solenoid Valve Cylinder 3 – Current Too Low or Open Circuit on ECU (D420) Pin (A5) and or Pin (A6)
• PACCAR Fault Code P1213 — Injector Solenoid Valve Cylinder 6 – Current Too Low or Open Circuit on ECU (D420) Pin (A7) and or Pin (A8)
• PACCAR Fault Code P1217 — Injector Solenoid Valve Cylinder 2 – Current Too Low or Open Circuit on ECU (D420) Pin (A9) and or Pin (A10)
• PACCAR Fault Code P1221 — Injector Solenoid Valve Cylinder 4 – Current Too Low or Open Circuit on ECU (D420) Pin (A11) and or Pin (A12)
• PACCAR Fault Code P1225 — Injector Solenoid Valve Cylinder 1, 2, 3 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A2) or Pin (A10) or Pin (A6)
• PACCAR Fault Code P1235 — Turbo Speed – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P128E — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P128F — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P1302 — Cylinder 2 – Intermittent Misfire
• PACCAR Fault Code P1304 — Cylinder 4 – Intermittent Misfire
• PACCAR Fault Code P1305 — Cylinder 5 – Intermittent Misfire
• PACCAR Fault Code P1306 — Cylinder 6 – Intermittent Misfire
• PACCAR Fault Code P1403 — Crankcase Air Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON
• PACCAR Fault Code P1407 — Crankcase Air Pressure – Leakage Detected
• PACCAR Fault Code P1408 — Crankcase Air Pressure – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P1409 — EGR Pressure – Data Valid But Too High
• PACCAR Fault Code P140E — Crankcase Ventilation Module Rotor Speed – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P1490 — EGR Gas Flow Detected While the EGR Valve is Closed
• PACCAR Fault Code P151B — Aftertreatment System – Vehicle Speed Limitation Active
• PACCAR Fault Code P1568 — Coolant Pump Clutch 1 – Short Circuit to Ground
• PACCAR Fault Code P1569 — Coolant Pump Clutch 1 – Short Circuit to Supply
• PACCAR Fault Code P156A — Coolant Pump Clutch 1 – Current Too Low or Open Circuit
• PACCAR Fault Code P156B — Coolant Pump Clutch 2 – Short Circuit to Ground
• PACCAR Fault Code P156C — Coolant Pump Clutch 2 – Short Circuit to Supply
• PACCAR Fault Code P156D — Coolant Pump Clutch 2 – Current Too Low or Open Circuit
• PACCAR Fault Code P1572 — Inlet Air Temperature After Compressor – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1574 — Exhaust Gas Pressure Before Turbine – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1580 — Turbo Speed – Data Valid But Too High
• PACCAR Fault Code P1581 — Turbo Speed – Data Valid But Too Low
• PACCAR Fault Code P1602 — PCI ECU – Software Error
• PACCAR Fault Code P1644 — PCI ECU 5 V Sensor Supply – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P1645 — PCI ECU 5 V Sensor Supply – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P1658 — PCI ECU – Internal Error
• PACCAR Fault Code P1674 — PCI ECU – Software Error
• PACCAR Fault Code P1675 — PCI ECU – Software Error
• PACCAR Fault Code P1676 — PCI ECU – Software Error
• PACCAR Fault Code P1677 — PCI ECU – Software Error
• PACCAR Fault Code P1678 — PCI ECU – Software Error
• PACCAR Fault Code P1679 — PCI ECU – Internal Error
• PACCAR Fault Code P1681 — PCI ECU – Software Error
• PACCAR Fault Code P1698 — PCI ECU 5 V Sensor Supply – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P1699 — PCI ECU 5 V Sensor Supply – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P1704 — Lambda – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P1705 — Lambda Response Rate – Too Low
• PACCAR Fault Code P1706 — Lambda Response Rate – Too High
• PACCAR Fault Code P1707 — Lambda – Data Valid But Too Low
• PACCAR Fault Code P1708 — Lambda – Data Valid But Too High
• PACCAR Fault Code P1709 — Lambda – Data Valid But Too Low During Overrun
• PACCAR Fault Code P170A — Lambda – Data Valid But Too Low, Most Severe
• PACCAR Fault Code P170B — Lambda – Data Valid But Too High, Most Severe
• PACCAR Fault Code P170C — NOx Sensor Before Catalyst Response – Data Erratic, Intermittent or Incorrect, During Overrun
• PACCAR Fault Code P170D — NOx Sensor Before Catalyst Response – Incorrect
• PACCAR Fault Code P170E — NOx Sensor Before Catalyst Response – Incorrect
• PACCAR Fault Code P170F — NOx Concentration Before Catalyst – Data Valid But Too High During Overrun
• PACCAR Fault Code P171E — Air Mass Flow – Data Valid But Too High
• PACCAR Fault Code P1727 — VTG Turbocharger Control – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P1868 — Ambient Temperature – Data Valid But Too High
• PACCAR Fault Code P2104 — Engine Protection System – Warning Active
• PACCAR Fault Code P2150 — Common Rail Pump Unit 2 – Voltage Too Low or Shot Circuit to Ground on ECU (D420) Pin (A27)
• PACCAR Fault Code P2237 — Lambda – Open Circuit on ECU (D420) Pin (C45)
• PACCAR Fault Code P2238 — Lambda – Current Too Low on ECU (D420) Pin (C45)
• PACCAR Fault Code P2239 — Lambda – Current Too High on ECU (D420) Pin (C45)
• PACCAR Fault Code P2266 — Water-in-Fuel – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A49)
• PACCAR Fault Code P2275 — Water-In-Fuel – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A49)
• PACCAR Fault Code P228C — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P228D — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P228E — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P228F — Common Rail Fuel Pressure Control – Incorrect
• PACCAR Fault Code P2296 — Common Rail Pressure Release Valve – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C4)
• PACCAR Fault Code P253B — CAN Communication – Message (PTO) Out of Range, Engine PTO Governor Set Switch
• PACCAR Fault Code P2579 — Turbo Speed – Abnormal Rate of Change
• PACCAR Fault Code P2580 — Turbo Speed – Data Valid But Too Low, Least Severe on ECU (D420) Pin (C87)
• PACCAR Fault Code P2581 — Turbo Speed – Data Valid But Too High, Least Severe on ECU (D420) Pin (C87)
• PACCAR Fault Code P2603 — Coolant Pump Speed – Data Valid But Too High
• PACCAR Fault Code P3405 — MX Engine Brake Solenoid Valve Cylinder 1 – 3 Current Too Low or Open Circuit on ECU (D420) Pin (A17)
• PACCAR Fault Code P3407 — MX Engine Brake Solenoid Valve Cylinder 1 Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A17)
• PACCAR Fault Code P3408 — MX Engine Brake Solenoid Valve Cylinder 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A17)
• PACCAR Fault Code P3413 — MX Engine Brake Solenoid Valve Cylinder 2 – Current Too Low or Open Circuit on ECU (D420) Pin (A16)
• PACCAR Fault Code P3415 — MX Engine Brake Solenoid Valve Cylinder 2 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A16)
• PACCAR Fault Code P3416 — MX Engine Brake Solenoid Valve Cylinder 2 – Voltage Too High or Short Circuit to Supply On ECU (D420) Pin (A16)
• PACCAR Fault Code P3421 — MX Engine Brake Solenoid Valve Cylinder 3 – Current Too Low or Open Circuit on ECU (D420) Pin (A24)
• PACCAR Fault Code P3423 — MX Engine Brake Solenoid Valve Cylinder 3 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A24)
• PACCAR Fault Code P3424 — MX Engine Brake Solenoid Valve Cylinder 3 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A24)
• PACCAR Fault Code P3429 — MX Engine Brake Solenoid Valve Cylinder 4 – Current Too Low or Open Circuit on ECU (D420) Pin (A21)
• PACCAR Fault Code P3431 — MX Engine Brake Solenoid Valve Cylinder 4 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A21)
• PACCAR Fault Code P3432 — MX Engine Brake Solenoid Valve Cylinder 4 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A21)
• PACCAR Fault Code P3437 — MX Engine Brake Solenoid Valve Cylinder 5 – Current Too Low or Open Circuit on ECU (D420) Pin (A13)
• PACCAR Fault Code P3439 — MX Engine Brake Solenoid Valve Cylinder 5 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A13)
• PACCAR Fault Code P3440 — MX Engine Brake Solenoid Valve Cylinder 5 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A13)
• PACCAR Fault Code P3445 — MX Engine Brake Solenoid Valve Cylinder 6 – Current Too Low or Open Circuit on ECU (D420) Pin (A20)
• PACCAR Fault Code P3447 — MX Engine Brake Solenoid Valve Cylinder 6 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A20)
• PACCAR Fault Code P3448 — MX Engine Brake Solenoid Valve Cylinder 6 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A20)
• PACCAR Fault Code P3759 — Heater Element PM Sensor – Voltage Too High or Short Circuit to Supply, High Side
• PACCAR Fault Code P3760 — Heater Element PM Sensor – Voltage Too Low or Short Circuit to Ground, High Side
• PACCAR Fault Code P3761 — Heater Element PM Sensor – Voltage Too High or Short Circuit to Supply, Low Side
• PACCAR Fault Code P3762 — DPF Differential Pressure – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (A70)
• PACCAR Fault Code P3763 — DPF Differential Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (A70)
• PACCAR Fault Code P3764 — DPF Differential Pressure – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3766 — DPF Differential Pressure – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (B32)
• PACCAR Fault Code P3767 — DPF Differential Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B32)
• PACCAR Fault Code P3768 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON, on ECU (D374) Pin (B32)
• PACCAR Fault Code P3769 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, During Operation, on ECU (D374) Pin (B32)
• PACCAR Fault Code P3770 — DPF Outlet Pressure – Data Erratic, Intermittent or Incorrect, at Ignition ON or During Operation, on ECU (D374) Pin (B32)
• PACCAR Fault Code P3771 — Heater Element PM Sensor – Voltage Too Low or Short Circuit to Ground, Low Side
• PACCAR Fault Code P3772 — PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3774 — SCR Catalyst Efficiency – Compensation Level Too High
• PACCAR Fault Code P3777 — SCR Catalyst – Compensation Level Too High
• PACCAR Fault Code P3784 — Sensor Circuit PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3785 — Sensor Circuit PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3788 — DPF Filtration Efficiency – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P3795 — Exhaust Gas Temperature After DPF – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3796 — Diesel Particulate Filter (DPF) – Soot Level, Most Severe
• PACCAR Fault Code P3797 — Diesel Particulate Filter (DPF) – Soot Level, Least Severe
• PACCAR Fault Code P3798 — Diesel Particulate Filter (DPF) – Soot Level, Moderately Severe
• PACCAR Fault Code P3801 — DPF Regeneration Switch – Used in Soot Level 1 or Higher
• PACCAR Fault Code P3803 — PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3805 — PM Sensor Heater – Error at Deactivation
• PACCAR Fault Code P3805 — DPF Active Regeneration – Unable to Perform Due to System Timeout
• PACCAR Fault Code P3808 — Exhaust Gas Temperature Before SCR Catalyst – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3809 — Exhaust Gas Temperature Before SCR Catalyst – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3810 — Exhaust Gas Temperature Before SCR Catalyst – Temperature Difference
• PACCAR Fault Code P3811 — PM Sensor Heater – Error, at Startup
• PACCAR Fault Code P3815 — NH₃ Sensor – Abnormal Rate of Change, Too Low
• PACCAR Fault Code P3815 — Sensor Circuit PM Sensor – Voltage Too High (If Equipped with PM Sensor)
• PACCAR Fault Code P3816 — Exhaust Gas Temperature Before SCR Catalyst – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3817 — Exhaust Gas Temperature After SCR Catalyst – Data Valid But Too High, Most Severe
• PACCAR Fault Code P3821 — NH₃ Sensor – Degraded
• PACCAR Fault Code P3821 — PM Sensor ECU – Temperature Too High or Too Low
• PACCAR Fault Code P3825 — Exhaust Gas Temperature Before SCR Catalyst – Data Valid But Too High, Moderately Severe
• PACCAR Fault Code P3827 — Exhaust Gas Temperature Before SCR Catalyst – Data Valid But Too High, Most Severe
• PACCAR Fault Code P3828 — Exhaust Gas Temperature After SCR Catalyst – Data Valid But Too High, Most Severe
• PACCAR Fault Code P3829 — DEF Tank Level Sensor – Presist, Not Valid
• PACCAR Fault Code P3830 — SCR Catalyst – Not Detected
• PACCAR Fault Code P3831 — Fuel Shutoff Valve – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B07)
• PACCAR Fault Code P3832 — Fuel Shutoff Valve – Short Circuit to Supply or Open Circuit on ECU (D374) Pin (B07)
• PACCAR Fault Code P3833 — Fuel Dosing Valve – Current Too Low or Open Circuit on ECU (D374) Pin (A05) or Pin (A29)
• PACCAR Fault Code P3834 — Fuel Shutoff Valve – Data Erratic, Intermittent, or incorrect on ECU (D374) Pin (B07)
• PACCAR Fault Code P3835 — Fuel Shutoff Valve – Not Responding or Out of Adjustment on ECU (D374) Pin (B07)
• PACCAR Fault Code P3838 — Intake Module Fuel Pressure – Data Erratic, Intermittent, or Incorrect, Not Changing During Operation on ECU (D374) Pin (A72)
• PACCAR Fault Code P3839 — Intake Module Fuel Pressure – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (A72)
• PACCAR Fault Code P3840 — Intake Module Fuel Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (A72)
• PACCAR Fault Code P3841 — Air Shutoff Valve – Stuck in Closed Position
• PACCAR Fault Code P3842 — Air Shutoff Valve – Voltage Too Low or Short Circuit to Ground ECU (D374) Pin (A32)
• PACCAR Fault Code P3843 — Air Shutoff Valve – Short Circuit to Supply or Open Circuit on ECU (D374) Pin (A32)
• PACCAR Fault Code P3844 — DEF Dosing Valve – Current Too Low or Open Circuit on ECU (D374) Pin (A77) or Pin (A53)
• PACCAR Fault Code P3845 — Pump Module Reverting Valve – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B34)
• PACCAR Fault Code P3846 — Pump Module Reverting Valve – Short Circuit to Supply or Open Circuit on ECU (D374) Pin (B34)
• PACCAR Fault Code P3847 — Pump Module Pressure – Voltage Too High or Short Circuit to Supply On ECU (D374) Pin (B45)
• PACCAR Fault Code P3848 — Pump Module Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B45)
• PACCAR Fault Code P3849 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3850 — PM Sensor ECU – Internal Error
• PACCAR Fault Code P3850 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3851 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3852 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3852 — PM Sensor – Persist, Not Valid
• PACCAR Fault Code P3853 — Pump Module – Failed to Thaw
• PACCAR Fault Code P3854 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3855 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3858 — Pump Module – Pressure Stabilization Failed
• PACCAR Fault Code P3860 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3861 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3862 — CAN Communication – Timeout from Aftertreatment System
• PACCAR Fault Code P3863 — NOx Sensor Before Catalyst Power Supply – Incorrect
• PACCAR Fault Code P3864 — NOx Sensor Before Catalyst – Short Circuit or Open Circuit
• PACCAR Fault Code P3865 — NOx Sensor Before Catalyst – Short Circuit or Open Circuit
• PACCAR Fault Code P3866 — CAN Communication – Message (AT1IGC1) Timeout from NOx Sensor Before Catalyst
• PACCAR Fault Code P3867 — Heater Element NOx Sensor Before Catalyst Performance – Malfunction
• PACCAR Fault Code P3868 — Heater Element NOx Sensor Before Catalyst – Warm-up Failed
• PACCAR Fault Code P3869 — NOx Sensor Before Catalyst – Short Circuit or Open Circuit
• PACCAR Fault Code P3870 — NOx Sensor Before Catalyst – Power Supply Not Correct
• PACCAR Fault Code P3871 — CAN Communication – Message (AT1IGC1) Timeout from NOx Sensor Before Catalyst
• PACCAR Fault Code P3872 — CAN Communication – Message Timeout from SCR Exhaust Gas Temperature Sensors ECU
• PACCAR Fault Code P3874 — CAN Communication – Message Time-out from DOC DPF Temperature Sensors ECU
• PACCAR Fault Code P3875 — EAS-3 ECU – Data Lost Due to Incorrect Power Down
• PACCAR Fault Code P3876 — EAS-3 ECU – Internal Error
• PACCAR Fault Code P3877 — NOx Sensor Before Catalyst – Persist, Not Valid
• PACCAR Fault Code P3879 — Hydrocarbon Storage – Level Too High
• PACCAR Fault Code P3881 — NOx Sensor Before Catalyst Power Supply – Incorrect
• PACCAR Fault Code P3882 — EAS-3 ECU – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (B03)
• PACCAR Fault Code P3883 — EAS-3 ECU – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B03)
• PACCAR Fault Code P3884 — EAS-3 ECU Power Supply DEF Pressure Sensor – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (B57)
• PACCAR Fault Code P3885 — EAS-3 ECU Power Supply DEF Pressure Sensor – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B57)
• PACCAR Fault Code P3886 — EAS-3 ECU Power Supply DOC DPF Pressure Sensor – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (B42)
• PACCAR Fault Code P3887 — EAS-3 ECU Power Supply DOC DPF Pressure Sensor – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B42)
• PACCAR Fault Code P3888 — EAS-3 ECU Power Supply Fuel Intake Module – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (A89)
• PACCAR Fault Code P3889 — EAS-3 ECU Power Supply Fuel Intake Module – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (A89)
• PACCAR Fault Code P3890 — Tank Heater Valve – Short Circuit to Supply or Open Circuit on ECU (D374) Pin (B47)
• PACCAR Fault Code P3891 — Tank Heater Valve – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B47)
• PACCAR Fault Code P3896 — DPF Filtration Efficiency – Too Much Soot Detected, on PM Sensor
• PACCAR Fault Code P3901 — Pump Module – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code P3902 — Pump Module Heater Relay – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B33)
• PACCAR Fault Code P3903 — Pump Module Heater Relay – Short Circuit to Supply or Open Circuit on ECU (D374) Pin (B33)
• PACCAR Fault Code P3904 — Pump Module – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (B46) or Pin (B48)
• PACCAR Fault Code P3905 — Pump Module – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (B48)
• PACCAR Fault Code P3906 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3907 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3908 — Pump Module Temperature – Malfunction on Sensor
• PACCAR Fault Code P3909 — Pump Module Heater – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3910 — Pump Module Heater – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3911 — Pump Module Reverting Valve – Malfunction
• PACCAR Fault Code P3915 — Heater Element NOx Sensor After Catalyst – Warm-Up Failed
• PACCAR Fault Code P3916 — NOx Sensor After Catalyst – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P3917 — Heater Element NOx Sensor After Catalyst – Malfunction
• PACCAR Fault Code P3918 — NOx Sensor After Catalyst – NOx Signal Malfunction
• PACCAR Fault Code P3921 — CAN Communication – Time Out from NOx Sensor After Catalyst
• PACCAR Fault Code P3923 — NOx Sensor After Catalyst Power Supply – Interrupted
• PACCAR Fault Code P3925 — PM Sensor Temperature Probe – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3926 — PM Sensor Temperature Probe – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3927 — Heater Element NOx Sensor After Catalyst Performance – Malfunction
• PACCAR Fault Code P3928 — NOx Sensor After Catalyst – Data not Rational, Drifted High
• PACCAR Fault Code P3931 — NOx Sensor After Catalyst – O₂ Sensor Malfunction
• PACCAR Fault Code P3932 — NOx Sensor After Catalyst – O₂ Concentration, Too High
• PACCAR Fault Code P3933 — NOx Sensor After Catalyst O₂ Concentration Too Low
• PACCAR Fault Code P3934 — NOx Sensor After Catalyst – O₂ Concentration, Reacting Too Slow
• PACCAR Fault Code P3940 — CAN – Message Time-Out from DEF Tank Level Sensor
• PACCAR Fault Code P3942 — Exhaust Gas Temperature Sensors DPF – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3943 — Exhaust Gas Temperature Sensors DPF – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3945 — CAN Communication – Time-Out from DOC DPF Temperature Sensors ECU
• PACCAR Fault Code P3946 — Exhaust Gas Temperature Sensors SCR – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3947 — Exhaust Gas Temperature Sensors SCR – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3948 — Exhaust Gas Temperature Sensors SCR – Data Valid But Too High
• PACCAR Fault Code P3949 — CAN – Time-Out from SCR Exhaust Gas Temperature Sensors ECU
• PACCAR Fault Code P3950 — DEF Quality – Out of Calibration
• PACCAR Fault Code P3950 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3951 — CAN – Message Time-Out Low from DEF Quality Sensor
• PACCAR Fault Code P3951 — Heater  Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3952 — CAN – Message Time-Out PM Sensor
• PACCAR Fault Code P3952 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3953 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3954 — PM Sensor – Power Supply Intermittent
• PACCAR Fault Code P3954 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3955 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3955 — PM Sensor – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code P3956 — PM Sensor – Voltage Too Low or Short Circuit to Ground
• PACCAR Fault Code P3956 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3957 — Heater Element NH₃ Sensor – Malfunction
• PACCAR Fault Code P3957 — PM Sensor – Current Too High
• PACCAR Fault Code P3958 — PM Sensor – Regeneration Failed
• PACCAR Fault Code P3958 — NH₃ Sensor Internal Trim Resistor – Malfunction
• PACCAR Fault Code P3959 — NH₃ Sensor Internal Trim Resistor – Malfunction
• PACCAR Fault Code P3959 — PM Sensor – Data Not Rational Drifted Low
• PACCAR Fault Code P3960 — PM Sensor – Regeneration, Time-Out from PM Sensor
• PACCAR Fault Code P3960 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3961 — PM Sensor Temperature Probe – Out of Range, at Ignition ON
• PACCAR Fault Code P3961 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3962 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3962 — PM Sensor Temperature Probe – Signal in Range Error
• PACCAR Fault Code P3963 — PM Sensor ECU – Temperature Too High
• PACCAR Fault Code P3963 — CAN – Time-Out from NH₃ Sensor
• PACCAR Fault Code P3964 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3965 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3966 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3966 — DEF Quality Sensor – Temperature Error
• PACCAR Fault Code P3967 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3967 — CAN – Message Time-Out from DEF Tank Temperature Sensor
• PACCAR Fault Code P3968 — DEF Tank Temperature – Out of Calibration
• PACCAR Fault Code P3968 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3969 — NH₃ Sensor – Internal Error
• PACCAR Fault Code P3970 — NH₃ Sensor Power Supply – Interrupted
• PACCAR Fault Code P3970 — NOx Sensor After Catalyst – O₂ Sensor Malfunction
• PACCAR Fault Code P3971 — Heater Element NH₃ Sensor – Failed to Maintain the Operating Temperature
• PACCAR Fault Code P3972 — Heater Element NH₃ Sensor – Failed to Maintain the Operating Temperature
• PACCAR Fault Code P3972 — NOx Sensor After Catalyst O₂ Concentration Too Low
• PACCAR Fault Code P3973 — Heater Element NH₃ Sensor – Heating Failed During Warm-Up
• PACCAR Fault Code P3974 — NOx Sensor After Catalyst – Tampering Detected
• PACCAR Fault Code P3974 — NH₃ Sensor – Signal Incorrect
• PACCAR Fault Code P3975 — DEF Pipe Heating Relay – Voltage Too High or Short Circuit to Supply on ECU (D374) Pin (A08)
• PACCAR Fault Code P3976 — DEF Pipe Heating Relay – Voltage Too Low or Short Circuit to Ground on ECU (D374) Pin (A08)
• PACCAR Fault Code P3977 — Heater Element DEF Inlet Pipe – Short Circuit to Ground or Open Circuit on ECU (D374) Pin (A04)
• PACCAR Fault Code P3978 — Heater Element DEF Inlet Pipe – Short Circuit to Supply on ECU (D374) Pin (A04)
• PACCAR Fault Code P3979 — Heater Element DEF Return Pipe – Short Circuit to Ground or Open Circuit on ECU (D374) Pin (A52)
• PACCAR Fault Code P3980 — Heater Element DEF Return Pipe – Short Circuit to Supply on ECU (D374) Pin (A52)
• PACCAR Fault Code P3982 — Exhaust Gas Temperature Sensors SCR Power Supply – Interrupted
• PACCAR Fault Code P3983 — Exhaust Gas Temperature Sensor Before SCR Catalyst – Sensor Has Been Tampered With
• PACCAR Fault Code P3984 — CAN Communication – Time-Out from Vehicle Control System
• PACCAR Fault Code P3985 — Pump Module Power Supply – Current Too Low on ECU (D374) Pin (B46)
• PACCAR Fault Code P3986 — Pump Module Power Supply – Current Too High or Short Circuit to Ground on ECU (D374) Pin (B46)
• PACCAR Fault Code P3987 — Exhaust Gas Temperature Sensors DPF – Internal Error
• PACCAR Fault Code P3988 — Exhaust Gas Temperature Sensors SCR – Internal Error
• PACCAR Fault Code P3989 — PM Sensor – No Detection of Hot Exhaust Gasses
• PACCAR Fault Code P3989 — NH₃ Sensor – Value Not Changing When Expected
• PACCAR Fault Code P3990 — Exhaust Gas Temperature Sensors DPF Power Supply – Interrupted
• PACCAR Fault Code P3991 — DOC DPF Temperature Sensors ECU – Software Verification Incorrect
• PACCAR Fault Code P3992 — SCR Exhaust Gas Temperature Sensors ECU – Software Verification Incorrect
• PACCAR Fault Code P3993 — Heater Element DEF Pressure Pipe – Short Circuit to Ground or Open Circuit on ECU (D374) Pin (A28)
• PACCAR Fault Code P3994 — Heater Element DEF Pressure Pipe – Short Circuit to Supply on ECU (D374) Pin (A28)
• PACCAR Fault Code P3996 — DEF Flow – Too Low
• PACCAR Fault Code P3997 — DEF Quality – Incorrect
• PACCAR Fault Code U0011 — CAN – Hardware or Software Malfunction on V-CAN2
• PACCAR Fault Code U0129 — CAN – Message (EBC1) Time-Out from Brake System
• PACCAR Fault Code U0143 — CAN – Message (EEC2) Time-Out
• PACCAR Fault Code U1011 — CAN – Hardware or Software Malfunction on E-CAN
• PACCAR Fault Code U1014 — CAN – Hardware or Software Malfunction on V-CAN1
• PACCAR Fault Code U1015 — CAN – Hardware or Software Malfunction on A-CAN
• PACCAR Fault Code U1048 — VTG Turbocharger Actuator Position – Incorrect
• PACCAR Fault Code U1049 — VTG Turbocharger Actuator Position – Incorrect
• PACCAR Fault Code U1104 — CAN – Message (ACC1) Time-Out from Advanced Emergency Braking System
• PACCAR Fault Code U1105 — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, Engine Stop from Body Builder Module
• PACCAR Fault Code U111B — CAN Communication – Message (EXH_GAS_CORR) Out of Range, O₂ Concentration Before Catalyst (Corrected) from Aftertreatment System
• PACCAR Fault Code U1132 — CAN – Message (CM1) Time-Out from Vehicle System
• PACCAR Fault Code U113D — CAN – Message (A1SCRDSI2) Time-Out
• PACCAR Fault Code U1145 — CAN – Message (A1SCRRSI) Time-Out
• PACCAR Fault Code U1163 — CAN Communication – Message (A1SCRAI2) Out of Range, SCR Intermediate NH₃ from Aftertreatment System
• PACCAR Fault Code U1164 — CAN Communication – Message (A1SCRAI2) Out of Range, SCR Intermediate NH₃ Reading Stable from Aftertreatment System
• PACCAR Fault Code U1408 — VTG Turbocharger Actuator Status – Data Erratic, Intermittent or Incorrect
• PACCAR Fault Code U153B — CAN Communication – Message (PTO) Out of Range, Engine PTO Resume Switch
• PACCAR Fault Code U1780 — CAN – Message (TSC1 yye) Time-Out
• PACCAR Fault Code U1781 — CAN – Message (TSC_PE) Time-Out
• PACCAR Fault Code U1789 — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, Starter Interrupt from Body Builder Module
• PACCAR Fault Code U178A — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC Enable from Body Builder Module
• PACCAR Fault Code U178B — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC Resume or Set from Body Builder Module
• PACCAR Fault Code U178C — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC n Variable from Body Builder Module
• PACCAR Fault Code U178D — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC n Variable from Body Builder Module
• PACCAR Fault Code U178E — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, Application Speed Limiter Switch 1 from Body Builder Module
• PACCAR Fault Code U178F — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC n2 from Body Builder Module
• PACCAR Fault Code U1790 — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, ESC n3 from Body Builder Module
• PACCAR Fault Code U1791 — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, Application Speed Limiter Switch 2 from Body Builder Module
• PACCAR Fault Code U1792 — CAN Communication – Message (PROBA_BBM_to_Eng) Out of Range, Throttle Integration Switch from Body Builder Module
• PACCAR Fault Code U1799 — CAN Communication – Message (TSC1 yye) Data Error
• PACCAR Fault Code U179A — CAN Communication – Message (TSC1_SE) Data Error from Body Builder Module
• PACCAR Fault Code U179B — CAN Communication – Message (TSC1_TE) Data Error from Transmission System
• PACCAR Fault Code U179C — CAN Communication – Message (TSC1_VE) Data Error from Vehicle Control System
• PACCAR Fault Code U179D — CAN Communication – Message (TSC1 xxe) Data Error
• PACCAR Fault Code U179E — CAN – Message (TSC1 xxe) Time-Out
• PACCAR Fault Code U17B0 — Water-in-Fuel Drain Control – Short Circuit to Supply on ECU (D420) Pin (A40)
• PACCAR Fault Code U17B1 — Water-in-Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A40)
• PACCAR Fault Code U17B3 — Water-in-Fuel Drain Control – Short Circuit to Supply on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B4 — Water-in-Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B5 — Water-in-Fuel Drain Control – Current Too Low or Open Circuit on ECU (D420) Pin (A37)
• PACCAR Fault Code U17B6 — CAN Communication – Message (TSC1_AE) Data Error from Brake System
• PACCAR Fault Code U17B7 — CAN Communication – Message (TSC1_BE) Data Error from Brake System
• PACCAR Fault Code U17B8 — CAN Communication – Message (TSC1_HCE) Data Error from Aftertreatment System
• PACCAR Fault Code U17B9 — CAN Communication – Message (TSC1_PE) Data Error
• PACCAR Fault Code U17C4 — CAN – Message (TSC1 ACXR) Time-Out
• PACCAR Fault Code U17C5 — CAN – Message (TSC1_AXR) Time-Out
• PACCAR Fault Code U17C8 — CAN – Message (TSC1_VXR) Time-Out
• PACCAR Fault Code U17CA — CAN Communication – Message (TSC1_AXCR) Message Checksum
• PACCAR Fault Code U17CB — CAN Communication – Message (TSC1_AXR) Message Count from Brake System
• PACCAR Fault Code U17CC — CAN Communication – Message (TSC1_DXR) Message Count from Retarder System
• PACCAR Fault Code U17CD — CAN Communication – Message (TSC_TXR) Message Count from Transmission System
• PACCAR Fault Code U17CE — CAN Communication – Message (TSC1_VXR) Message Count
• PACCAR Fault Code U17CF — CAN Communication – Message (TSC1_SXR) Message Count
• PACCAR Fault Code U17D0 — CAN Communication – Message (TSC1_AXCR) Message Checksum
• PACCAR Fault Code U17D1 — CAN Communication – Message (TSC1_AXR) Message Checksum from Brake System
• PACCAR Fault Code U17D2 — CAN Communication – Message (TSC1_DXR) Message Checksum from Retarder System
• PACCAR Fault Code U17D3 — CAN Communication – Message (TSC_TXR) Message Checksum from Transmission System
• PACCAR Fault Code U17D4 — CAN Communication – Message (TSC1_VXR) Message Checksum
• PACCAR Fault Code U17D5 — CAN Communication – Message (TSC1_SXR) Message Checksum
• PACCAR Fault Code U17E4 — Remote Pedal – Voltage Too High or Short Circuit to Supply
• PACCAR Fault Code U1803 — CAN Communication – Message (ACC1) Out of Range, Forward Collision Warning from Advanced Emergency Braking System
• PACCAR Fault Code U180A — CAN Communication – Message (PTO) Out of Range, PTO Governor State
• PACCAR Fault Code U180B — CAN Communication – Message (CCVS_VIC) Out of Range, Cruise Control Pause Switch from Vehicle Control System
• PACCAR Fault Code U1825 — CAN – Message (PROPB_SW) Rate Too High from Steering Wheel Switches
• PACCAR Fault Code U1829 — CAN Communication – Message (PROPB_VIC) Not Available
• PACCAR Fault Code U182C — CAN Communication – Message (PROPB_VIC) Out of Range, KM/H, Miles/H Switch from Vehicle Control System
• PACCAR Fault Code U1836 — CAN Communication – Message (PTO) Out of Range, Engine Remote PTO Governor Variable Speed Control Switch
• PACCAR Fault Code U1837 — CAN Communication – Message (PTO) Out of Range, Engine Remote PTO Governor Preprogrammed Speed Control Switch
• PACCAR Fault Code U1838 — CAN Communication – Message (PTO) Out of Range, Engine PTO Governor Enable Switch
• PACCAR Fault Code U1839 — CAN Communication – Message (PTO) Out of Range, Remote PTO Governor Preprogrammed Speed Control Switch No. 2
• PACCAR Fault Code U183E — CAN – Message (TRF1) Time-Out from Transmission System
• PACCAR Fault Code U183F — CAN Communication – Message (VDC1) Out of Range, VDC Brake Light Request from Brake System
• PACCAR Fault Code U1847 — PCI ECU Software Verification – Incorrect
• PACCAR Fault Code U1848 — EAS-3 ECU Software Verification – Incorrect
• PACCAR Fault Code U1849 — NOx Sensor Before Catalyst Software Verification – Incorrect
• PACCAR Fault Code U184B — CAN – Message (TESTINHB_INF) Time-Out from Aftertreatment System
• PACCAR Fault Code U184E — CAN Communication – Message (PROPB_SW) Not Available, Speed Functions Off Switch from Steering Wheel Switches
• PACCAR Fault Code U1850 — NOx Sensor After Catalyst Software Verification – Incorrect
• PACCAR Fault Code U1851 — NH₃ Sensor Software Verification – Incorrect
• PACCAR Fault Code U1852 — VTG Turbocharger Actuator Software Verification – Incorrect
• PACCAR Fault Code U1853 — EGR Valve Module Software Verification – Incorrect
• PACCAR Fault Code U1854 — BPV Actuator Software Verification – Incorrect
• PACCAR Fault Code U1855 — Catalytic Convertor Temperature Sensors ECU Software Verification – Incorrect
• PACCAR Fault Code U1856 — DOC DPF Temperature Sensors ECU Software Verification – Incorrect
• PACCAR Fault Code U1857 — Humidity Sensor Software Verification – Incorrect
• PACCAR Fault Code U1858 — Fault Exists with the DECECU 11 CVN Calculation
• PACCAR Fault Code U185A — CAN – Message (A1DEFI) Time-Out from Aftertreatment System
• PACCAR Fault Code U185C — CAN Communication – Message (A1DEFI) Out of Range, DEF Property from Aftertreatment System
• PACCAR Fault Code U185E — CAN – Message (EPSI) Time-Out from Aftertreatment System
• PACCAR Fault Code U1863 — ECU Software Verification – Incorrect
• PACCAR Fault Code U1870 — CAN – Message (PROPB_CECU) Time-Out from Vehicle Control System
• PACCAR Fault Code U1872 — CAN Communication – Message (PROPB_CECU) Out of Range, Soft-Top Speed Limiter Switch from Vehicle Control System
• PACCAR Fault Code U1875 — CAN Communication – Message (VDC1) Out of Range, VDC Brake Light Request from Brake System
• PACCAR Fault Code U1890 — CAN Communication – Message (EBC1) Out of Range, Anti-Lock Brake System Active from Brake System
• PACCAR Fault Code U1891 — CAN Communication – Message (EBC1) Data Not Correct or Available, Anti-Lock Brake System Active from Brake System
• PACCAR Fault Code U1893 — CAN – Message (PROPB_SCD_1) Rate Too High from Predictive Cruise Control
• PACCAR Fault Code U1894 — CAN Communication – Message (PROPB_SCD_1) Out of Range, Predictive Cruise Control Set Speed Delta from Predictive Cruise Control
• PACCAR Fault Code U1895 — CAN Communication – Message (PROPB_ SCD_1) Not Available, Predictive Cruise Control Set Speed Delta from Predictive Cruise Control
• PACCAR Fault Code U1896 — CAN Communication – Message (PROPB_ SCD_1) Out of Range, Predictive Cruise Control Downhill Speed Control Override Request from Predictive Cruise Control
• PACCAR Fault Code U1897 — CAN Communication – Message (PROPB_SCD_1) Not Available, Predictive Cruise Control Downhill Speed Control Override Request from Predictive Cuise Control
• PACCAR Fault Code U1899 — CAN Communication – Message (AT1IG1) Out of Range O₂ Concentration Before Catalyst Reading Stable from NOx Sensor Before Catalyst
• PACCAR Fault Code U1901 — CAN – Message (DPFC2) Rate Too High from Aftertreatment System