Rear View Mirrors - Exterior, Memory
Rear View Mirrors - Exterior, Memory
Overview
The memory mirror function recalls the preferred positioning of the LH (Left Hand) and RH (Right Hand) exterior mirror glass. When a memory position is recalled by the operator, the LH (Left Hand) and RH (Right Hand) exterior mirror glass automatically adjusts to the preferred position stored in memory.
The LH (Left Hand) and RH (Right Hand) exterior mirrors may be equipped with a mirror-mounted turn signal assembly. REFER to Turn Signal and Hazard Lamps Turn Signal and Hazard Lamps.
The LH (Left Hand) and RH (Right Hand) exterior mirrors may be equipped with approach or puddle lamps, which will illuminate when the interior lights are turned on by opening a door or by pressing the unlock button on the transmitter. REFER to Interior Lighting Interior Lighting.
The LH (Left Hand) and RH (Right Hand) exterior mirrors may be equipped with either a spotter mirror in the upper outboard corner of the exterior mirror glass or BLIS(R) / CTA (Cross Traffic Alert) indicators. REFER to Side And Rear Vision Side And Rear Vision.
System Operation
System Diagram
Network Message Chart
REFER to Network Message Chart Seating - 1st Row - Memory.
Rear View Mirrors - Exterior, Memory
LH (Left Hand) and RH (Right Hand) exterior mirror glass movement is controlled by the exterior mirror control switch, DSM (Driver Seat Module) and the LH (Left Hand) and RH (Right Hand) exterior mirror motors. The exterior mirror control switch sends voltage signals to the DSM (Driver Seat Module). The DSM (Driver Seat Module) provides voltage and ground to the appropriate exterior mirror motors to move the selected exterior mirror glass to the desired position.
The memory function recalls the preferred position of the exterior mirrors when the transmission is in PARK or NEUTRAL and the memory set switch, RKE (Remote Keyless Entry) transmitter (without IA (Intelligent Access)) or IA (Intelligent Access) key (with IA (Intelligent Access)) is activated.
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 (Left Hand) and RH (Right Hand) exterior rear view mirrors left, right, up or down.When the ignition is ON and the exterior mirror control switch button is pressed, the exterior mirror control switch a voltage signal is sent to the DSM (Driver Seat Module) 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 (Driver Seat Module). The memory set switch is integral to the driver door lock control switch.
Driver Seat Module (DSM)
The DSM (Driver Seat Module) incorporates multiple functions into one module and offers diagnostics to easily locate and repair concerns affecting the subsystems that it controls. The DSM (Driver Seat Module) 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 (Driver Seat Module) supplies voltage and ground to the exterior mirror motors and monitors the potentiometer circuits. When the stored memory position is reached, the DSM (Driver Seat Module) removes the voltage and ground from the motors. If the exterior mirror control switch is operated during a memory recall, the DSM (Driver Seat Module) stops the recall and responds to the exterior mirror control switch command. The DSM (Driver Seat Module) is capable of setting a DTCs (Diagnostic Trouble Codes) for the memory mirror system when a system concern exists.
Exterior Mirror
Power mirrors allow the LH (Left Hand) or RH (Right Hand) 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 (Driver Seat Module) uses to monitor the LH (Left Hand) and RH (Right Hand) exterior mirror motor positions. When a mirror motor position is stored in the DSM (Driver Seat Module), the DSM (Driver Seat Module) retains this position in memory for future recall based on the information received from the potentiometer.