Cummins ISB CM850 (2003-06) Fault Code: 351 PID: SID 254 SPN: 627 FMI: 12 Injector Power Supply – Bad Intelligent Device or Component. The ECM measured injector boost voltage is low.
This fault code will become active when the engine is running, the primary engine speed sensor signal is present, the battery charge is above a minimum threshold, and, at the same time, the measured injector power supply voltage is lower than the commanded injector power supply voltage.
This fault code will become inactive whenever the keyswitch is turned on.
This fault code will become inactive whenever the engine is running and measured injector power supply voltage reaches the commanded injector power supply voltage.
1) Repair or replace the damaged harness, pins, fuses, or connectors.
2)Repair or replace the ECM power supply harness, fuses, or fuse holders, or clean the battery terminal connections.
3)Replace the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 343 PID: SID 254 SPN: 629 FMI: 12 Engine Control Module Warning Internal Hardware Failure – Bad Intelligent Device or Component.
Cummins ISB CM850 (2003-06) Fault Code: 342 PID: SID 253 SPN: 630 FMI: 13 Electronic Calibration Code Incompatibility – Out of Calibration. An incompatable calibration between the primary and secondary OEM installed ECM’s has been detected.
Cummins ISB CM850 (2003-06) Fault Code: 341 PID: SID 253 SPN: 530 FMI: 2 Engine Control Module Data Lost – Data Erratic, Intermittent or Incorrect. Severe loss of data from the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 334 PID: 110 SPN: 110 FMI: 2 Engine Coolant Temperature – Data Erratic, Intermittent, or Incorrect. The engine coolant temperature reading is not changed with engine operating conditions.
Cummins ISB CM850 (2003-06) Fault Code: 332 PID: SID 4 SPN: 654 FMI: 5 Injector Solenoid Driver Cylinder 4 Circuit – Current Below Normal or Open Circuit. High resistance or no current detected at number 4 injector driver or RETURN pin.
Cummins ISB CM850 (2003-06) Fault Code: 331 PID: SID 2 SPN: 652 FMI: 5 Injector Solenoid Driver Cylinder 2 Circuit – Current Below Normal or Open Circuit. High resistance or no current detected at number 2 injector driver or RETURN pin.
