Diesel Data: Automotive Repair

Change Engine Oil

The Powertrain Control Module (PCM) will determine the amount of oil life from various sensors and inputs within the engine control system. Oil life is calculated by the PCM and sent to the instrument cluster through the class II serial data link. When the PCM has determined that an oil life of 0 percent is present, it will inform the driver by turning on the CHANGE OIL indicator. After an oil change, the CHANGE OIL indicator can be reset by:
^ Turning the ignition switch on (engine off).
^ Fully press and release the accelerator pedal 3 times within 5 seconds.
^ The CHANGE OIL SOON indicator will flash 2 times indicating the CHANGE OIL indicator has been reset.

If the light comes on and stays on for 5 seconds, the system did not reset. The system will need to be reset again.