Test F: The Auto-Dimming Mirror Does Not Operate Correctly

PINPOINT TEST F: THE AUTO-DIMMING MIRROR DOES NOT OPERATE CORRECTLY

Normal Operation
The interior auto-dimming mirror receives power from circuit CBP02 (GN) and ground from circuit GD139 (BK/YE). If equipped with a LH exterior auto-dimming mirror, and the auto-dimming feature is activated, voltage is sent from the interior mirror to the LH exterior mirror though circuit LRD12 (BU/GY). Ground for the LH exterior mirror is provided by the interior mirror through circuit RRD12 (BN). When the vehicle is placed in REVERSE, voltage is sent to the interior mirror through circuit CBP12 (GN/WH) and the interior 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
- LH exterior mirror glass
- LH exterior mirror

F1-F4:

F4-F6:

F6-F7:

F7-F9:

F9-F10:

F10-F11:

F12-F13:

F13-F14:

F14 Continued: