Cummins ISB CM850 (2003-06) Fault Code: FC0003 PID: SPN: FMI: Exhaust Gas Pressure Sensor Number 1 Circuit – Data Erratic,...

Cummins ISB CM850 (2003-06) Fault Code: FC0004 PID: SPN: FMI: Exhaust Gas Temperature Sensor Number 1 Circuit – Data Erratic,...

Cummins ISB CM850 (2003-06) Fault Code: FC0005 PID: SPN: FMI: Exhaust Gas Temperature Sensor Number 1 Circuit – Voltage Below...

Cummins ISB CM850 (2003-06) Fault Code: FC0006 PID: SPN: FMI: Exhaust Gas Temperature Sensor Number 1 Circuit – Voltage Above...

This fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM. Possible...

Circuit DescriptionThe engine speed sensor provides engine speed information to the engine control module (ECM). The sensor must be powered...