Power Mirrors - Inoperative (With RPO Code A43)

POWER MIRRORS INOPERATIVE (RENDEZVOUS W/A43)

DIAGNOSTIC AIDS
- An intermittent power mirrors inoperative fault may be caused by an open outside rearview mirror switch ground circuit. When the outside rearview mirror switch ground circuit is open, the switch may seek a ground path through the illumination ground circuit.
- An intermittent driver outside rearview mirror malfunction may be caused by an open driver mirror motor left control circuit. When the driver mirror motor left control circuit is open, the driver mirror motor may seek an alternate circuit path through the passenger mirror motor.
- An intermittent passenger outside rearview mirror malfunction may be caused by an open passenger mirror motor left control circuit. When the passenger mirror motor left control circuit is open, the passenger mirror motor may seek an alternate circuit path through the driver mirror motor.

TEST DESCRIPTION

Steps 1-5:

Steps 6-10:

Steps 11-17:

Steps 18-24:

Steps 25-30:

3. Tests for an open in the outside rearview mirror switch ground circuit. If the mirror switch ground circuit is open, turning on the headlamps will remove the alternate ground path through the illumination ground circuit.
4. Tests to see if the malfunction is on the switch side of the MSM, or the mirror motor side.
7. Tests for a short to ground in the mirror switch or motor control circuits.
8. Tests for an open or short to ground in the mirror switch supply voltage circuit.
10. Tests for an open or short to ground in the mirror motor.
11. Tests for an open or short to ground in the mirror motor assembly.