System Operation - Exterior, Power, Without Memory

The LH, RH, up or down exterior mirror glass movement is controlled by the exterior mirror control switch, which supplies voltage and ground to the LH and RH exterior mirror motors. The exterior mirror control switch receives voltage from the BCM fuse 23 (10A) any time the ignition is on. When the exterior mirror selection switch is in the LH or RH position and the exterior mirror control switch is pressed left, right, up or down, the switch supplies voltage and ground to the appropriate exterior mirror motor.

Each exterior mirror shares a common ground circuit for left, right, up and down movement.