MIL Operation
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The MIL is located on the Instrument Panel (IP).
MIL Function
- The MIL informs the driver that a malfunction has occurred. The vehicle should be serviced as soon as possible.
- The MIL illuminates during a bulb test, and during a system test.
- A DTC will be stored if the diagnostic test requests a MIL.
MIL Illumination
- The MIL will illuminate with ignition switch ON, and with the engine not running.
- The MIL will turn OFF when the you start the engine.
- The MIL will remain ON if the self-diagnostic system detects a malfunction.
- The MIL may turn OFF if the malfunction is not present.
- If the MIL is illuminated and then the engine stalls, the MIL will remain illuminated if the ignition switch is ON.
- If the MIL is not illuminated and the engine stalls, the MIL will not illuminate until the ignition switch is cycled OFF, and cycled ON again.