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Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Engine Controls Self-Diagnostics) >> System Tests >> Malfunction Indicator Lamp Inoperative >> Description

Malfunction Indicator Lamp Inoperative: Description

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Battery positive voltage is supplied directly to the Malfunction Indicator Lamp (MIL). The Powertrain Control Module (PCM) turns the MIL ON by grounding the MIL control circuit. There should be a steady Malfunction Indicator Lamp (MIL) with the ignition ON and the engine OFF.