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Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Controls - Self-Diagnostics) >> System Tests >> Malfunction Indicator Lamp Always On >> Description

Malfunction Indicator Lamp Always On: Description

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

Ignition voltage is supplied to the Malfunction Indicator Lamp (MIL). The Powertrain Control Module (PCM) turns the MIL on by grounding the MIL control circuit.

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