Cummins ISB CM850 (2003-06) Fault Code: 779 PID: SID 51 SPN: 703 FMI: 11 Auxiliary Equipment Sensor Input #3 (OEM Switch) – Root Cause Not Known.
This fault code is activated when the pressure or temperature input from the OEM sensor exceeds the engine protection limit defined by the OEM. An engine power derate is possible depending on the OEM application.
Possible repairs:
1)Replace the OEM harness.
Cummins ISB CM850 (2003-06) Fault Code: 778 PID: SID 64 SPN: 723 FMI: 2 Engine Speed Sensor (Camshaft) Error – Data Erratic, Intermittent, or Incorrect. The ECM has detected an error in the camshaft position sensor signal.
Cummins ISB CM850 (2003-06) Fault Code: 757 PID: SPN: 611 FMI: 11 Engine Control Module Data Lost – Condition Exits. Severe loss of data from the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 731 (Marine) PID: SID 64 SPN: 723 FMI: 7 Engine Speed Sensor/Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding Properly or Out of Adjustment. Mechanical misalignment between the crankshaft and camshaft engine speed sensors.
Cummins ISB CM850 (2003-06) Fault Code: 731 (Auto) PID: SID 64 SPN: 732 FMI: 7 Engine Speed Sensor/Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding Properly or Out of Adjustment. Mechanical misalignment between the crankshaft and camshaft engine speed sensors.
Cummins ISB CM850 (2003-06) Fault Code: 692 PID: SPN: 1172 FMI: 4 Turbocharger Number 1 Compressor Inlet Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the turbocharger compressor inlet air temperature sensor circuit.
Cummins ISB CM850 (2003-06) Fault Code: 691 PID: SPN: 1172 FMI: 3 Turbocharger Number 1 Compressor Inlet Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the turbocharger compressor inlet air temperature circuit.
