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PACCAR PX-6 CM2150 (2007-09) Fault Code: 145 PID: 110 SPN: 110 FMI: 4 Engine Coolant Temperature 1 Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at engine coolant temperature circuit.
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
The engine coolant temperature sensor shares return wires in the engine harness with other sensors. A shorted return can cause multiple fault codes to be active. Before troubleshooting Fault Code 145, check for multiple fault codes.
Possible causes:
1)Signal shorted to ground in the harness
2)Signal shorted to return or ground in the sensor.
Possible repairs:
1)Replace the engine coolant temperature sensor.
2)Replace the ECM.
3)Replace the engine harness.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 144 PID: 110 SPN: 110 FMI: 3 Engine Coolant Temperature 1 Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage or open circuit detected at engine coolant temperature circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 143 PID: 100 SPN: 100 FMI: 1 Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level. Engine oil pressure signal indicates engine oil pressure is below the engine protection warning limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 141 PID: 100 SPN: 100 FMI: 4 Engine Oil Rifle Pressure 1 Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the engine oil pressure circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 135 PID: 100 SPN: 100 FMI: 3 Engine Oil Rifle Pressure 1 Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the engine oil pressure circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 134 PID: 372 SPN: 974 FMI: 4 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at remote accelerator position signal circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 133 PID: 372 SPN: 974 FMI: 3 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at remote accelerator position signal circuit.