Cumminz

Cummins ISM CM870 (2003-06) Fault Code: 265 PID...

Beginning with 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 Number 3682854,...

Cummins ISM CM870 (2003-06) Fault Code: 263 PID...

Beginning with 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 Number 3682854,...

Cummins ISM CM870 (2003-06) Fault Code: 259 PID...

Upon turning the keyswitch off, the ECM turns off the voltage supplied to keep the fuel shutoff open. The ECM continues to fire the fueling and timing actuators as the...

Cummins ISM CM870 (2003-06) Fault Code: 256 PID...

Possible causes: 1)Signal shorted to ground in the harness2)Signal shorted to return or ground in the sensor. Possible repair: 1)Replace the OEM harness.2)Replace the ambient air temperature sensor.3)Replace the ECM

Cummins ISM CM870 (2003-06) Fault Code: 2554 PI...

At key-on, before the engine starts, the sensor readings for barometric pressure, engine oil pressure, and intake manifold pressure are compared with exhaust gas pressure. This fault code occurs if...

Cummins ISM CM870 (2003-06) Fault Code: 2552 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...