General

The Automatic Day-Night 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 1. Ground feeds terminal 2. With the gear selector lever in reverse, battery voltage is applied to terminal 3 of the mirror. The mirror then gradually changes to a clear state.

An electronic compass is contained within the inside Automatic Day-Night Mirror. The compass display is located on the mirror.

The electronic compass includes a fluxgate magnetic field sensor and a microprocessor. The microprocessor receives inputs from the sensor, processes them and provides outputs to the compass display which indicates the vehicle heading, relative to the Earth's magnetic fields.