Malfunction Indicator Lamp (MIL) Check
- Turn ON ignition switch (but the engine at stop) and check that MIL lights.
If MIL does not light up, go to MIL DOES NOT LIGHT OR MIL DIMS AT IGNITION SWITCH ON LEAVING ENGINE OFF (BUT ENGINE CAN BE STARTING) for troubleshooting.
- Start engine and check that MIL turns OFF.
- If MIL remains ON, and no DTC is stored in ECM, go to MIL REMAINS ON AFTER ENGINE STARTS for troubleshooting.