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 power from circuit CBP41 (BU), or if equipped with a microphone, circuit CBP31 (BU/OG), and ground from circuit GD133 (BK). When the vehicle is placed in REVERSE, voltage is sent to circuit CLS10 (GN/BN) and the interior auto-dimming mirror will turn the dimming feature off. There are 2 photoelectric sensors: one in the front of the interior rear view mirror and one mounted on the glass side of the mirror. If the sensors are blocked, the interior auto-dimming mirror might not work correctly. Always verify both sensors are not physically blocked before attempting to diagnose auto-dimming mirror concerns.

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

D1-D3:

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D9-D11:

D12-D13: