Operation CHARM: Car repair manuals for everyone.

System Controls

Each outside rearview mirror can be controlled by the outside rearview mirror switch. The outside rearview mirror switch can control both outside rearview mirrors.

Each outside rearview mirror has two reversible motors. One motor adjusts the mirror up and down. The other motor adjusts the mirror left and right. The motors are controlled by the outside rearview mirror switch. The outside rearview mirror switch consists of two different switches:
^ The mirror select switch is used to select the mirror to be adjusted; left, none, or right.
^ The mirror position switch controls the movement of the selected mirror. Each position activates an independent contact that is grounded until pressed.

The power mirror system has battery positive voltage applied by the PWR ACCY Fuse 7 through the battery positive voltage circuit to the outside rearview mirror switch. When the up position on the mirror position switch is selected, voltage is applied through the Up switch to the Mirror Motor Up Control circuits to the up/down motor of the left and right mirrors. The circuit ground is applied to the mirror select switch through the Down switch providing the ground path for the selected mirror to the Mirror Motor Down Control circuit, as determined by the mirror select switch position. When the down position on the mirror position switch is selected, voltage is applied to the mirror select switch through the Down switch providing the voltage path for the selected mirror to the Mirror Motor Down Control circuit, as determined by the mirror select switch position. The circuit ground is applied through the Up switch to the Mirror Motor Up Control circuits to the up/down motor of the left and right mirrors. Left and right movement works by the same process, reversing the polarity to change direction, with the mirror select switch completing the circuit for only one mirror at a time. When the outside rearview mirror switch is idle, all mirror motor control circuits are grounded unless no mirror is selected.

Each mirror motor contains an internal electronic circuit breaker. If a mirror position switch is held in the up/down position or the left/right position after the mirror movement stops, the circuit breaker opens to protect the motor. The circuit breaker will also open to stop the motor if the mirror becomes obstructed during operation. The circuit breaker will reset when the voltage to the motor is interrupted.