Cummins Fault Code 144: Engine Coolant Temperature Sensor Circuit - shorted high

Code details

Manufacturer

Cummins

Applies to

Cummins QS-series electronic engines

Fault code

144

J1939 SPN

110

FMI

3 — Voltage above normal, or shorted to high source

J1587 PID / SID

P110

Engine models

QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30

QSK45/60/78 severity level

QSK45: 2 • QSK60: 2 • QSK78: 2

What to do next

• Read active and inactive codes with the OEM service tool and note the occurrence count.
• FMI 3 tells the shop the type of failure to test for: voltage above normal, or shorted to high source.
• Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

Related fault codes

• Cummins Fault Code 145 — Engine Coolant Temperature Sensor Circuit - shorted low
• Cummins Fault Code 146 — Engine Coolant Temperature High – Warning
• Cummins Fault Code 151 — Engine Coolant Temperature High – Critical
• Cummins Fault Code 151 — Engine Coolant Temperature High – Critical
• 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 P0217 — Engine Coolant Temperature – Data Valid But Too High, Most Severe