Cumminz

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. Possible no noticeable performance effects, engine dying or hard starting. Fault information, trip information, and maintenance monitor data can be inaccurate. 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: 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. This fault code is logged when incompatible calibrations between the primary and secondary OEM installed ECM’s is detected The fault is not triggered by the Cummins installed engine ECM and is only stored as an information fault code. Do not recalibrate or change the Cummins ECM for this fault code. Possible repairs: 1)Incompatible calibrations have been detected in the OEM installed primary and secondary...

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. This fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM. For Euro certified engines this fault code indicates that the Real Time Clock feature needs to re reset (if equipped). Possible repairs: 1)Replace the ECM.

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...

Cummins ISB CM850 (2003-06) Fault Code: 352 PID: SID 212 SPN: 1079 FMI: 4 Sensor Supply Voltage Number 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at sensor supply number 1 circuit. Low voltage on the (+) 5 volt supply line can be caused by a short circuit to ground in a supply line, a short circuit between a supply line and a return line, a failed sensor, or a failed ECM power supply. On-Board Diagnostics (OBD) Information (Euro 4 Certified Engines): 1)The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs...