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

Parking Aid - Video

Pinpoint Test L: 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 L : THE REAR VIDEO MIRROR DISPLAY ALWAYS ON (VEHICLES WITHOUT NAVIGATION)

X1 CHECK THE REVERSING LAMPS OPERATION

- Check the operation of the reversing lamps

Do the reversing lamps operate correctly?

Yes
GO to X2.

No
REFER to Lighting and Horns.

X2 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. 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.