Check Engine/Malfunction Indicator (MIL) Light

- The Malfunction Indicator Light (MIL) is intended to alert the driver in the event of certain malfunctions in the Electronic Engine Control (EEC) system. The light will remain ON while the key is in the RUN position, and goes OFF once the vehicle has started. The light may also be used to retrieve service codes stored in the Powertrain Control Module (PCM).

- If the light comes ON for a period then goes OFF, and a service code is present, the fault is intermittent. If such a fault occurs, the PCM will substitute a value or values and continue operating. In some cases, this action may result in a slight change in driveability. This process is Limited Operating Strategy (LOS).