Power Mirror System Components
The power mirror system consists of the following components:
| • | Mirror direction switch -- Controls the left, right, up and down movements of the mirrors |
| • | Mirror select switch -- Allows the operator to select the mirror to be moved |
| • | Left outside mirror -- Contains both the horizontal and vertical mirror motors |
| • | Right outside mirror -- Contains both the horizontal and vertical mirror motors |
| • | BCM ELECT 7.5A fuse -- Located in the body control module (BCM) fuse panel and supplies power for the power mirror system |
Each of the outside power mirrors contains 2 motors. The up-down motor operates the vertical directions and the left-right motor operates the horizontal directions. Each of the power mirror motors are internally circuit breaker protected.
Power Mirror System Controls
The outside mirror switch incorporates a mirror select switch and a 4 position mirror direction switch.
The mirror select switch allows the driver to select the mirror to be moved by pressing the switch to L position enabling the left outside mirror or pressing the switch to R position enabling the right outside mirror.
The mirror direction switch is a 4 position switch that allows the operator to move the selected mirror up, down, left or right.
Power Mirror System Operation
The outside mirror switch receives power through the battery positive voltage circuit from the 7.5A BCM ELECT fuse. The outside mirror switch also receives a constant ground.
The 4 positions of the direction switch have multiple switch contacts. When not in use, the directional contacts are isolated from any circuit. Each of the contacts are connected to opposing sides of the appropriate mirror motors through the selector switch. The selector switch interrupts or completes these circuits depending on the position of the selector switch, L or R.
If the mirror select switch is placed in the L position and the up switch is pressed, battery voltage will be supplied to the driver outside mirror vertical motor through the driver mirror motor up control circuit and return to the mirror switch through the driver mirror motor left/down control circuit, then to ground and the mirror will move up. If the down switch is pressed, the driver mirror motor left/down control circuit supplies battery voltage and the driver mirror motor up control circuit completes the path to the mirror switch, then to ground and the mirror will move down.
The remainder of the mirror functions operate in the same manner as described above. Placing the mirror control switch in opposing positions, left/right or up/down, will reverse the voltage polarity to the mirror motor, utilizing the same circuits and the mirror will move accordingly.
