Malfunction Indicator Light
As a bulb and system check, the Malfunction Indicator Light (MIL will illuminate when ignition switch is turned to ON position and engine is not running. When engine is started, MIL should go out. If MIL does not go out, a malfunction has been detected in the computerized engine control system or MIL circuit is faulty. MIL may be used on some models to display stored diagnostic trouble codes. To access codes, see appropriate SELF-DIAGNOSTICS article.