Cumminz

Cummins ISM CM875 (2003-06) Fault Code: 122 PID...

The intake manifold pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to...

Cummins ISM CM875 (2003-06) Fault Code: 1119 PI...

Beginning with engine serial number (ESN) first 14039654, the temperature sensor RETURN circuit was separated from the pressure sensor RETURN circuit. For engine serial numbers (ESNs) prior to this and...

Cummins ISM CM875 (2003-06) Fault Code: 111 PID...

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

Cummins ISM CM870 (2003-06) Fault Code: 951 PID...

At engine idle speeds, the ECM measures the instantaneous acceleration of each cylinder as it fires to determine the cylinder’s power. The ECM adjusts fueling to individual cylinders if the...

Cummins ISM CM870 (2003-06) Fault Code: 9121 PI...

The ECM calculates the temperature of the EGR valve motor. If the ECM detects excessive temperatures for a calibrated period of time this fault is recorded and the valve is...

Cummins ISM CM870 (2003-06) Fault Code: 784 PID...

This fault is set active if the ECM does not receive the Heartbeat message from the adaptive cruise control unit on the SAE J1939 data link. Possible repair: 1)Repair the...