Electrically adjustable exterior rear view mirrors — description [Toyota Highlander XU20]

1. Most power rearview mirrors use two motors to move the glass: one to move up and down and one to move left and right.

2. There is a selector on the control switch that sends voltage to the mirror on the left or right side. With the ignition on but the engine off, open the window and use the mirror control switch to activate all the functions of the mirror adjustment on the right and left side (full speed left-right and up-down).

3. Listen carefully to the sound of the mirror motors.

4. If the sound of the electric motors is heard, but the mirror glass does not move, there is a problem with the transmission of motion inside the mirror. To solve the problem, remove and disassemble the mirror.

5. If the mirrors do not work or make a sound, check the fuse.

6. If the fuse is in order, remove the mirror control switch from the front panel. Check that the switch is working properly by contacting the dealer's service department or another service station.

7. Check the electrical grounding circuits. Refer to electrical circuits at the end of this chapter.

8. If the mirror drive still does not work, remove the mirror and check the wires in the mirror for voltage.

9. If there is no voltage at each switch position, check the electrical circuit between the mirror and the control switch for opens and short circuits.

10. If voltage is present, remove the mirror and test it outside the vehicle using the jumper wires. Replace the mirror if the test fails.