Cumminz

Cummins ISM CM870 (2003-06) Fault Code: 2551 PI...

The ECM estimates the amount of fuel injected into the front and rear banks of the engine by analyzing the acceleration of the crankshaft. This fault is set active when...

Cummins ISM CM870 (2003-06) Fault Code: 255 PID...

If there is an external shutdown system on the vehicle, make sure it is not miswired and feeding voltage into the fuel shutoff supply circuit. Possible causes: 1)Open circuit in...

Cummins ISM CM870 (2003-06) Fault Code: 254 PID...

Inspect the fuel shutoff supply circuit for external wires that can be spliced in to power another device. Remove any extra wires that are found in the circuit. If there...

Cummins ISM CM870 (2003-06) Fault Code: 249 PID...

Possible causes: 1)Open return circuit in the harness, connectors, or sensor2)Open signal circuit or shorted to a voltage source. Possible repair: 1)Replace the OEM harness.2)Replace the ambient air temperature sensor.3)Replace...

Cummins ISM CM870 (2003-06) Fault Code: 245 PID...

This fault code is logged when the ECM commands 12 or 24-VDC to the fan control solenoid, but the voltage on the fan control signal circuit is less than 12...

Cummins ISM CM870 (2003-06) Fault Code: 242 PID...

Verify that the feature settings for the vehicle speed sensor anti-tampering (Fault Code 242), application type and automatic transmission are set correctly. If any of these are set incorrectly for...