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Home >> Pontiac >> 2003 >> Vibe Base, FWD, Automatic >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Control System - Theory & Operation >> Self-Diagnostic System >> Malfunction Indicator Light

Malfunction Indicator Light

As a bulb and system check, the Malfunction Indicator Light (MIL) will illuminate when ignition switch is turned to RUN 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. To access codes, see SELF-DIAGNOSTICS - 1.8L VIBE article.