Automatic Dimming Inside Mirror Test

Automatic Dimming Inside Mirror Test

EX-L, EX-L PZEV models

1. Check for obstructions (parking stickers, labels, etc.) over the front-facing lux level sensor (A).





2. Disconnect the 6P connector (A).

3. Turn the ignition switch to ON (II).

4. Measure the voltage between terminal No. 2 and body ground.

- If there is less than 0.2 V, go to step 5.
- If there is more than 0.2 V, check for:
- An open or high resistance in the wire.
- Poor ground (G501).

5. Measure the voltage between terminal No. 1 and body ground.

- If there is battery voltage, go to step 6.
- If there is no voltage, check for:
- Blown No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box.
- An open or high resistance in the wire.

6. Measure the voltage between terminal No. 3 and body ground with the transmission range switch in R position.

- If there is battery voltage, replace the rearview mirror Rearview Mirror Replacement.
- If there is no voltage, check for:
- An open or high resistance in the wire.
- Faulty driver's under-dash fuse/relay box.
- Faulty transmission range switch.