Malfunction Indicator Light (Mil): Notes

Vehicle is equipped with a Malfunction Indicator Light (MIL). As a bulb check, the MIL will illuminate for about 5 seconds whenever ignition is turned on. The MIL will also illuminate when a system failure is detected; a corresponding Diagnostic Trouble Code (DTC) will set in Electronic Control Module (ECM) memory.

The ECM is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, the ECM will illuminate the MIL (CHECK ENGINE light) on instrument panel. When a malfunction is detected and the MIL is illuminated, a corresponding DTC will be stored in the ECM. To retrieve DTCs, see RETRIEVING DTC(S)  . Malfunctions are recorded as hard failures or as intermittent failures.