FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Test K: The Malfunction Indicator Lamp (MIL) Is Never On

PINPOINT TEST K: THE MALFUNCTION INDICATOR LAMP (MIL) IS NEVER ON


K1-K3:






Normal Operation
The MIL is controlled by the instrument cluster using data sent from the powertrain control module (PCM) over the communication network.

Possible Causes
- PCM
- Instrument cluster