Pinpoint Test C: The Rear Video Mirror Display Is Always On (Vehicles Without Navigation)

Parking Aid - Video

Pinpoint Tests


Pinpoint Test C: The Rear Video Mirror Display Is Always On (Vehicles Without Navigation)

Normal Operation

The video camera receives a supply voltage with the ignition switch in the RUN position. When the gear selector is in the REVERSE (R) position, a reverse voltage signal is sent to the auto-dimming interior mirror supplying power to the display in the mirror. The video camera signal is sent to the auto-dimming interior mirror. The video signal from the video camera displays an image on the LH side of the auto-dimming interior mirror.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Auto-dimming interior mirror



PINPOINT TEST C: THE REAR VIDEO MIRROR DISPLAY IS ALWAYS ON

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C1 CHECK THE REVERSING LAMPS OPERATION


- Check the operation of the reversing lamps.
- Do the reversing lamps operate correctly?

Yes
GO to C2.

No
REFER to Lighting and Horns.

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C2 CHECK FOR CORRECT AUTO-DIMMING INTERIOR MIRROR OPERATION


- Disconnect the auto-dimming interior mirror connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the auto-dimming interior mirror connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?

Yes
INSTALL a new auto-dimming interior mirror. REFER to Mirrors. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

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