Component Description

Exterior Mirror Control Switch 

The exterior rear view mirror switch is integral to the master window control switch. The exterior mirror control switch provides the driver with the controls to move the LH and RH exterior rear view mirrors left, right, up or down. When the ignition is ON and the exterior mirror control switch button is pressed a voltage signal is sent to the DSM to move the selected exterior mirror glass to the desired position.

Memory Set Switch 

The memory set switch allows the recall of previously stored positions for the driver. This system allows automatic positioning of the driver seat, power exterior rear view mirrors and power adjustable pedals (if equipped) to 1 of 3 programmable positions. The memory set switch is a momentary ground contact switch that supplies a ground to the DSM. The memory set switch is integral to the driver door lock control switch.

Driver Seat Module (DSM) 

The DSM incorporates multiple functions into one module and offers diagnostics to easily locate and repair concerns affecting the subsystems that it controls. The DSM constantly tracks the exterior mirror motor position using potentiometers that are internal to the exterior mirror motors. When a memory position is recalled, the DSM supplies voltage and ground to the exterior mirror motors and monitors the potentiometer circuits. When the stored memory position is reached, the DSM removes the voltage and ground from the motors. If the exterior mirror control switch is operated during a memory recall, the DSM stops the recall and responds to the exterior mirror control switch command. The DSM is capable of setting a DTCs for the memory mirror system when a system concern exists.

Exterior Mirror 

Power mirrors allow the LH or RH exterior mirror glass to be positioned electronically. The position of the power mirror glass is controlled by the exterior mirror control switch. There are 2 bi-directional motors in each mirror that control the up/down and left/right movement of the exterior rear view mirror glass.

Each exterior mirror is equipped with a potentiometer. The potentiometer is a 3 wire sensor located internal to the exterior mirror motors, which the DSM uses to monitor the LH and RH exterior mirror motor positions. When a mirror motor position is stored in the DSM, the DSM retains this position in memory for future recall based on the information received from the potentiometer.