PACCAR (Kenworth & Peterbilt)
PACCAR fault code
SPN 2795 / FMI 19
PACCAR Fault Code U1409: VTG Turbocharger Actuator State – Data Erratic, Intermittent or Incorrect
U1409 on PACCAR (Kenworth & Peterbilt) engines means: VTG Turbocharger Actuator State – Data Erratic, Intermittent or Incorrect. The failure mode (FMI 19) is “received network data in error”.
Code details
- Manufacturer
- PACCAR (Kenworth & Peterbilt)
- Applies to
- PACCAR MX-13 (2017–2020)
- Fault code
- U1409
- J1939 SPN
- 2795
- FMI
- 19 — Received network data in error
- Truck models in source
- Kenworth T680, T880, W900, T800; Peterbilt 579, 389, 567, 367
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- FMI 19 tells the shop the type of failure to test for: received network data in error.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
- PACCAR Fault Code P2563 — VTG Turbocharger Actuator Position – NO or Too Slow Movement
- PACCAR Fault Code U1160 — VTG Turbocharger Actuator Control – Data Erratic, Intermittent or Incorrect
- PACCAR Fault Code U140A — VTG Turbocharger Actuator Effort – Data Erratic, Intermittent or Incorrect
- PACCAR Fault Code P104E — Exhaust Gas Pressure Before Turbine – Data Valid But Too Low, During Engine Braking
- PACCAR Fault Code P1727 — VTG Turbocharger Control – Data Erratic, Intermittent or Incorrect
- PACCAR Fault Code U1408 — VTG Turbocharger Actuator Status – Data Erratic, Intermittent or Incorrect
Source: PACCAR MX-13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.