Malfunction Indicator Light (Mil)

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As a bulb check, MIL illuminates for 2 seconds when ignition is on and engine is not running. MIL also illuminates when a system failure has been detected and a corresponding DTC has been set in PCM memory. Not all trouble codes will activate MIL. If MIL is on and no DTCs are in memory, problem may be intermittent. See INTERMITTENTS in the TESTS W/O CODES - GS-R article.