Operation CHARM: Car repair manuals for everyone.

Automatic Compass/Day-Night Mirrors Circuit Description

The electrochromic mirror uses two photocell sensors to determine light conditions in the 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 terminal A. With the mirror switch in "MIN," the mirror's sensitivity is set to a low level. With the mirror switch in "MAX," the mirror is set to a high sensitivity level, causing the mirror to darken at a lower glare level. With the gear selector lever in reverse, battery voltage is applied to terminal C of the mirror. The mirror then gradually changes to a clear state.

With option DD0 (Automatic Outside Mirror), the interior mirror also controls the reflectivity of the LH outside mirror. The LH outside mirror darkens or clears along with the interior mirror.