FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Test D: The Auto Dimming Mirror Does Not Operate Correctly

PINPOINT TEST D: THE AUTO DIMMING MIRROR DOES NOT OPERATE CORRECTLY

Normal Operation
The interior auto-dimming mirror receives voltage from the central junction box (CJB) through circuit 964 (DB/LG) and is grounded through circuit 57 (BK). When the transmission is in REVERSE, the digital transmission range (TR) sensor sends a voltage signal through circuit 140 (BK/PK) to the interior auto-dimming mirror, which turns the dimming feature off.

This pinpoint test is intended to diagnose the following:
- Fuse
- Interior auto-dimming mirror
- Wiring, terminals or connectors


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