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PACCAR PX-8 CM2150 (2007-09) Fault Code: 2376 PID: 412 SPN: 412 FMI: 4 Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at EGR 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 EGR temperature sensor shares return wires in the engine harness with other sensors. An open return can cause multiple fault codes to be active.

Possible causes:

1)A signal shorted to ground in the harness

Possible repairs:

1)Replace the EGR temperature sensor.
2)Replace the ECM.
3)Repair or replace the engine harness.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 2375 PID: 412 SPN: 412 FMI: 3 Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at EGR temperature circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2374 PID: 131 SPN: 1209 FMI: 4 Exhaust Gas Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the exhaust gas pressure circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2373 PID: 131 SPN: 1209 FMI: 3 Exhaust Gas Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the exhaust gas pressure circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2367 PID: SID 80 SPN: 1073 FMI: 3 Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 2 signal circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2363 PID: SID 029 SPN: 1073 FMI: 4 Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 2 signal circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2359 PID: 411 SPN: 411 FMI: 0 Exhaust Gas Recirculation Valve Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level. The EGR differential pressure sensor has detected high EGR gas flow, or the EGR differential pressure reading is not valid for engine operating conditions.