HEATED MIRRORS - SERVICE INFORMATION
DESCRIPTION
When equipped, the heated mirror system operates in concert with the rear window defogger (EBL) system and is controlled by the rear window defogger switch (1) located in the A/C-heater control (2) in the instrument panel center bezel (3). An amber indicator lamp in the rear window defogger switch will illuminate to indicate when the heated mirror system is turned on.
The heated mirror system will be automatically turned off after an initial programmed time interval of about 10 minutes as long as the ignition switch is in RUN. After the initial time interval has expired, if the rear window defogger switch is pressed to ON again during the same ignition cycle, the heated mirror system will automatically turn off after about 5 minutes. The heated mirror system will also turn off if the ignition switch is turned to any position other than RUN or by manually pressing the rear window defogger switch a second time.
Circuit protection for the heated mirror system is provided by a fuse located in the totally integrated power module (TIPM).
OPERATION
When equipped, the heated mirror system is activated when the rear window defogger (EBL) system is turned on (refer to 8 - ELECTRICAL/HEATED GLASS - OPERATION). When the heated mirror system is activated, an electric grid located behind the glass of each outside rear view mirror becomes energized and produces heat to help clear the mirror of ice, snow, or fog.
If both outside mirror heating grids are inoperative, test the EBL system for proper operation (refer to 8 - ELECTRICAL/HEATED GLASS - DIAGNOSIS AND TESTING). If only one outside mirror heating grid is inoperative, most likely the concern lies with the mirror itself (refer to 8 - ELECTRICAL/POWER MIRRORS - DIAGNOSIS AND TESTING).
The heating grid behind the outside rear view mirror glass cannot be repaired and the mirror assembly must be replaced if the heating grid is found to be inoperative (refer to 23 - BODY/EXTERIOR/SIDE VIEW MIRROR - REMOVAL).