Outside Mirror Description and Operation Heated Mirrors

The heated mirror system consists of the following components:

The heated mirror system is activated by depressing the heated mirror switch anytime the ignition is in the ON position.

Voltage is available to the heated mirror switch and the switched side of the heated mirror relay through the ignition 3 voltage circuit with the ignition switch in the ON position. The heated mirror switch is a momentary switch. When activated, voltage is available to the control side of the heated mirror relay coil. The other side of the relay coil is connected to a constant ground source and the relay is energized. Voltage is then available through the mirror heating element supply voltage circuit to the control side of the heated mirror relay, heated mirror indicator and each of the heated mirrors. Each outside rearview mirror contains a positive temperature coefficient (PTC) thermister and a heating element that is connected to a constant ground source. The resistance of the PTC will vary with the temperature of the mirror face to maintain a constant mirror temperature. The mirrors will remain active as long as the as the ignition switch is in the ON position.

Outside Mirror Description and Operation Power Mirrors

The power mirror system consists of the following components:

Each of the outside power mirrors contains two reversible motors. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. Each of the power mirror motors are circuit breaker protected.

The power mirror switch incorporates a mirror select switch and a four position mirror direction switch.

The mirror select switch allows the operator to select the mirror to be moved by rotating counterclockwise to the L position - left outside power mirror- or rotating clockwise to the R position - right outside power mirror.

The mirror direction switch is a four position switch that allows the operator to move the selected mirror up, down, left or right.

The power mirror switch receives power through the battery positive voltage circuit and the POWER ACCESSORIES fuse. The power mirror switch also receives a constant ground.

The four positions of the direction switch have dual switch contacts. Each of the contacts are connected to opposing sides of the appropriate power 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 selector switch is placed in the L position and the up switch is depressed, battery positive voltage will be supplied to the left outside power mirror vertical motor through the left mirror motor up direction circuit and return to the power mirror switch through the mirror motor common circuit then to ground and the mirror will move up. If the down switch is depressed, the common circuit supplies battery positive voltage and the left mirror motor up direction circuit completes the path to the power 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. The thing to remember is, that by placing the power mirror switch in opposing positions - left/right or up/down - will reverse the polarity of the mirror motor, utilizing the same circuits and the power mirror will move accordingly.