Power mirrors – circuit operation

POWER MIRRORS – CIRCUIT OPERATION

CIRCUIT OPERATION

When the Ignition Switch (X134) is in position II, voltage is supplied to the power mirrors circuit by fuse F18.

Left/Right Movement

When a selected mirror is moved to the left by the Mirror Adjustment Switch (X146), the internal contacts move to the “Move Down or Left” and the “Move Left” positions. The Left/Right Motor of the selected actuator is grounded at E200 through the SW wires and the switch contacts. Voltage is applied to the Left/Right Motor through the BP, BU wires. The mirror now moves left. When a selected mirror is moved to the right by the Mirror Adjustment Switch (X146), the internal contacts move to the “Move Up or Right” and the “Move Right” positions. The Left/Right Motor of the selected actuator is grounded at E200 through the BU, BP wires and the switch contacts. Voltage is applied to the Left/Right Motor through the SW wires. Since the polarity of the voltage to the motor has been reversed, the mirror now moves right.

Up/Down Movement

When a selected mirror is moved down by the Mirror Adjustment Switch (X146), the internal contacts move to the “Move Down or Left” and the “Move Down” positions. The Up/Down Motor of the selected actuator is grounded at E200 through the SW wires and the switch contacts. Voltage is applied to the Up/Down Motor through the BK, BN wires. The mirror now moves down. When a selected mirror is moved up by the Mirror Adjustment Switch (X146), the internal contacts move to the “Move Up or Right” and the “Move Up” positions. The Up/Down Motor of the selected actuator is grounded at E200 through the BN, BK wires and the switch contacts. Voltage is applied to the Up/Down Motor through the SW wires. Since the polarity of the voltage to the motor has been reversed, the mirror now moves up.