Malfunction Indicator Lamp (MIL)

The MIL is on the instrument panel. The MIL has the following functions:
^ The MIL informs the driver that a fault that affects the vehicle's emission levels has occurred. The owner should take the vehicle for service as soon as possible.
^ The MIL functions as a bulb and system check. The MIL illuminates with the key ON and the engine OFF. When the engine is started, the MIL turns OFF if DTCs are not set.

When the MIL remains on with the engine running, or when a malfunction is suspected due to a driveability or emissions problem, perform the On-Board Diagnostic (OBD) System Check. The procedures for this check is provided in Engine Controls. This check exposes faults that the technician may not detect if other diagnostics are performed first.