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Cummins ISX CM870 (2003-06) Fault Code: 431 (IS...

ISS Goes to 70-fc 431iss Possible causes: 1)A open circuit on either the idle validation on-idle or off-idle signal circuit, a loose connection, uncalibrated accelerator pedal assembly, or miswired idle...

Cummins ISX CM870 (2003-06) Fault Code: 429 PID...

Beginning with Engine Serial Number (ESN) 14039654, the temperature sensor return circuit was separated from the pressure sensor return circuit. For ESNs prior to this and with engine wiring harness...

Cummins ISX CM870 (2003-06) Fault Code: 428 PID...

Beginning with Engine Serial Number (ESN)14039654, the temperature sensor return circuit was separated from the pressure sensor return circuit. For ESNs prior to this and with engine wiring harness Part...

Cummins ISX CM870 (2003-06) Fault Code: 426 PID...

This fault occurs whenever the ECM starts communicating with any other device using the SAE J1939 data link and then can no longer transmit on the data link. Possible causes:...

Cummins ISX CM870 (2003-06) Fault Code: 418 PID...

This fault code indicates that water has been detected in the water separation fuel filter. Drain the water from the fuel filter. If this fault code is active and there...

Cummins ISX CM870 (2003-06) Fault Code: 415 PID...

The engine oil pressure sensor measures the pressure of the oil in the oil rifle on the left-hand side of the engine block. Possible causes: 1)Mechanical failures such as lubricating...