SIDEVIEW Mirror: Operation

Each of the two outside power mirrors includes two reversible electric motors that are secured within the power mirror housing. Each motor moves the mirror case and glass through an integral drive unit. When a power mirror motor is supplied with battery current and ground, it moves the mirror case and glass through its drive unit in one direction. When the battery current and ground feeds to the motor are reversed, it moves the mirror case and glass in the opposite direction.

The power mirrors are equipped with a standard equipment electric heating grid that is applied to the back of each outside rear view mirror glass. When an electrical current is passed through the resistor wire of the heating grid, it warms the mirror glass. (Refer to HEATED MIRRORS ) for more information on the operation of the heated mirrors and the rear window defogger system.

If the driver side mirror is equipped with the automatic dimming outside mirror option, two photocell sensors on the inside rear view mirror are used to monitor light levels and adjust the reflectance of both the inside and driver side outside mirrors. This change in reflectance helps to reduce the glare of headlamps approaching the vehicle from the rear. (Refer to AUTOMATIC DAY/NIGHT MIRROR  ) for more information on this feature.

If the vehicle is equipped with the optional memory system, the Driver Door Module (DDM) and the Passenger Door Module (PDM) store the mirror position information as monitored through the mirror motor position potentiometers. When the memory system requests a recall of the stored mirror position, the DDM and the PDM are able to duplicate the stored mirror positions by moving the mirror motors until the potentiometer readings match the stored values.