Hyundai Genesis (DH): Electro Chromic Inside Rear View Mirror / Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Body Electrical System / Electro Chromic Inside Rear View Mirror / Description and Operation

Description
The ECM (Electro Chromatic inside rear view Mirror) automatically dims when it senses light reflecting in the rear view mirror. The forward facing sensor detects brightness of the surroundings, while the rearward looking sensor is for the light from the rear. The strength of the light in the rear sensor is used by the mirror to adjust the shading. It ranges from 7 to 85%. When the reverse gear is engaged, it stops functioning.
1.
The forward facing sensor sees if the brightness of the surroundings is low enough for the mirror to operate its function.
2.
The rearward looking sensor detects glaring of the reflecting light from a vehicle behind.
3.
The ECM is darkened to the level as determined by the rearward looking sensor. When the glaring is no longer detected, the mirror stops functioning.

Description
The compass feature is designed to be integrated into an electro chromic interior rearview mirror.
The mirror assembly shall display a compass heading.
The compass mirror then take the sensor information to determine static field strengths and rotating field information to determine an accurate compass heading.
Specification
Item
Standard value
Rate voltage
DC 12V
Operating voltage range
DC9 ~ 16V
Operating temperature range
-30 ~ +65

    Components

    Inspection Check it by the procedure below to see if the function of the ECM is normal. 1. Turn the ignition key to the "ON" position. 2. Cover the forward facing sensor.

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