DESCRIPTION
The electrochromatic (EC) inside rear view mirror receives power, ground, and a reverse signal on the three wires that connect to it. It uses two light sensors to sense glare.
Scheme 9
- The front looking sensor determines if the outside light levels are low enough for the mirror to operate.
- The rearward looking sensor detects glare from lights behind the mirror. When glare is detected, it outputs signal to the mirror to dim at the required level.
- The mirror dims to the level as directed by the rearward looking sensor. When the glare is no longer detected, the mirror returns to normal.