FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Test W: The Wrench Warning Indicator Is Never/Always On

PINPOINT TEST W: THE WRENCH WARNING INDICATOR IS NEVER/ALWAYS ON


W1-W4:






Normal Operation
The instrument cluster receives the powertrain status from the powertrain control module (PCM) over the controller area network (CAN). When a system concern is detected, the PCM sends the instrument cluster a command signal to illuminate the wrench warning indicator.

Possible Causes
- PCM
- Instrument cluster