Malfunction Indicator Lamp (MIL) Check

Malfunction Indicator Lamp (MIL) Check

1) Turn ignition switch to ON position (with engine stopped) and check that MIL (1) lights.

If MIL does not light up (or MIL dims) but engine can be started, go to MIL Does Not Come ON with Ignition Switch in ON Position and Engine Stopped (but Engine Can Be Started) MIL Does Not Come ON with Ignition Switch in ON Position and Engine Stopped (but Engine Can Be Started)
for troubleshooting.

If MIL does not light with ignition switch in ON position and engine does not start though it is cranked up, go to Component Tests and General Diagnostics ECM Power and Ground Circuit Check.
2) 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 MIL Remains ON after Engine Starts
for troubleshooting.