Mirrors: Testing and Inspection

Inspection

Check it by the procedure below to see if the function of the ECM is normal.
1. Turn the ignition key to the "ON" position.
2. Press the (A) button to turn the automatic dimming function ON/OFF.
3. Cover the forward looking sensor(B) to stop functioning.
4. Head a light to the rearward looking sensor(C).
5. The ECM should be darkened as soon as the rearward looking sensor detects the light.

NOTE:
If this test is performed in daytime, the ECM may be darkened as soon as the forward looking sensor is covered.