Mirrors: Testing and Inspection

Automatic Dimming Interior Rearview Mirror, Checking Function

To check function, following conditions must be fulfilled:

• Interior rearview mirror installed.

• Ignition switched on.

• Reverse gear not engaged.

• Automatic-dimming function must be switched on, indicator light must come on.

Test Sequence






- Cover photo sensor - arrow - on the housing side - 1 -.

- Shine a light source, such as a flashlight, on the mirror side of the photosensor - 2 -.

• The interior rearview mirror must dim within a short period of time.