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.
The ECM is located on the left side of the engine, near the front of the engine. The ECM is connected to the battery by the ECM power harness. This direct link provides a constant power supply for the ECM. The location of the battery will vary with the OEM. Refer to the OEM troubleshooting and repair manual.
Possible repairs:
1)Charge or replace the battery.
2)Tighten the loose connections and clean the terminals.
3)Repair or replace the OEM harness.
4)Replace the fuses
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.
Cummins ISB CM850 (2003-06) Fault Code: 689 PID: 190 SPN: 190 FMI: 2 Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect. Loss of signal from crankshaft sensor.
Cummins ISB CM850 (2003-06) Fault Code: 688 PID: 98 SPN: 98 FMI: 0 Engine Oil Level ? Data Valid But Above Normal Operational Range ? Most Severe Level. High oil level has been detected by the oil level sensor.
