Automatic Compass/Day-Night Mirrors Circuit Description

The Electrochromatic Rear View Mirror and Automatic Day-Night Mirrors uses two photocell sensors to determine light conditions in front and back of the vehicle. At night as the glare of headlamps from behind increases, the mirror gradually becomes darker to absorb the glare. In the daytime, the mirror is in a clear state. With the Ignition Switch in RUN, battery voltage is applied to the Electrochromatic Rear View Mirror connector cavity 1. With the gear selector in reverse, battery voltage is applied to cavity 3 of the Electrochromatic Rear View Mirror, and the mirror will gradually change to a clear state. The Electrochromatic Rear View Mirror has four positions.