AUTO LIGHT SENSOR OPERATION


B3E091801052T17

• Installed on the underside of the rearview mirror (windshield center) and integrated with the rain sensor as a single unit.

1
Lens sensor
2
Auto-light sensor

• The upward and forward illumination level sensors which detect the level of illumination above and in front of the vehicle respectively are built-in.

Function Description

Illumination level adjustment function

• The illumination level sensitivity can be switched between two levels using the WDS or equivalent.

On-board diagnostic function

• If the voltage input to the auto-light sensor is not within the operational voltage (approx. 9-16 V), the PJB is informed of the malfunction and a PJB DTC is detected.