Interior Power Mirrors: Notes
DESCRIPTION
The interior power mirror system is comprised of the following components:
| 1. | Refer to DOOR CONTROL MODULE (DCM) . |
| 2. | Refer to DISPLAY SCREEN MODULE (DSM) . |
| 3. | Refer to COMBINED REAR VIEW MIRROR MODULE (CRVMM) OR DIGITAL REAR VIEW MIRROR (DRVM) . |
| 4. | Refer to BODY CONTROL MODULE (BCM) . |
On vehicles equipped with the customer programmable ElectroChromic (EC) mirror, the EC feature automatically changes reflectance of the internal and external mirror (if equipped) to provide maximum night time vision, while giving relief from glare caused by headlights from the rear of the vehicle during night driving. The windshield mounted EC mirror is packaged with the CRVMM assembly.
Besides the mirror glass, the EC mirror includes two photocell sensors, the electronic mirror control circuitry and the hardware necessary to communicate as a Local Interface Network (LIN) slave node on the LIN data bus.
OPERATION
The EC mirror can be turned ON and OFF through the settings in the radio. The EC mirror will always turn ON by default at the onset of a new ignition ON cycle. The automatic dimming mirror circuitry also senses the backup lamp circuit, and will automatically disable its self-dimming feature whenever the transmission gear selector is in the REVERSE position.
The ambient photocell sensor of the mirror faces forward, to detect the outside light levels through the windshield glass. A second headlamp photocell sensor is used to detect the light level received at the rear window side of the mirror. When the mirror control circuitry detects that the difference between the two sensed light levels has become too great (the light level received at the rear of the mirror is much higher than that at the front of the mirror) the mirror begins to darken. A thin layer of EC material between two pieces of conductive glass make up the face of the mirror.
A memory system that automatically positions the driver power mirror for two different drivers is an available option. With the memory system, the driver side mirror head also contains two position potentiometers. One position potentiometer monitors the vertical mirror motor, and the other monitors the horizontal mirror motor. For further information on the memory system, Refer to MODULE, MEMORY SEAT (MSM), DESCRIPTION AND OPERATION .
The standard equipment mechanically folding or the optional power folding, power operated exterior rear view mirrors are also electrically heated. The mirror heater only operates when the ignition is in the ON position and the rear window defogger switch is turned ON. When the rear window defogger switch is in the ON position, electric heater grids on the rear window glass and behind both outside rear view mirror glasses are energized. These electric heater grids produce heat to help clear the rear window glass and outside rear view mirrors of ice, snow, or fog. Refer to HEATED GLASS, DESCRIPTION AND OPERATION .
An optional integrated turn signal mirror is also available that includes a LED turn signal module integrated into the lower forward facing surface of each outside rear view mirror. Refer to EXTERIOR LAMPS, DESCRIPTION AND OPERATION .
On vehicles equipped with the optional Blind Spot Monitor (BSM) system, a LED display unit is concealed behind the outside rear view mirror glass. This unit illuminates an amber triangle icon through the lower edge of the mirror glass to give the vehicle operator an indication that an object has been detected by the BSM system. Refer to BLIND SPOT MONITORING WITH REAR CROSS PATH DETECTION, DESCRIPTION AND OPERATION .
The power outside rear view mirror unit cannot be repaired. Only the LED turn signal modules and the mirror glass and glass case are serviced separately. If any other component of the power mirror unit is ineffective or damaged, the entire power mirror unit must be replaced.