MIL Operation
WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
MIL Function
- The MIL informs the driver that a malfunction has occurred and vehicle should be taken in for service as soon as possible.
- The MIL illuminates during a bulb test and system test.
- A DTC will be stored if a MIL is requested by the diagnostic.
MIL Illumination
- MIL will illuminate with ignition switch ON and engine not running.
- MIL will turn OFF when engine is started.
- MIL will remain ON if the self-diagnostic system has detected a malfunction.
- MIL may turn OFF if malfunction is not present.
- If MIL is illuminated and then the engine stalls, MIL will remain illuminated so long as ignition switch is ON.
- If MIL is not illuminated and engine stalls, MIL will not illuminate until ignition switch is cycled OFF, then ON.