General Information

Body Control

Body Control Module - B1901 Auto Light Out Of Range General Information

Component Location





General Description

Autolight control system controls head/tail light automatically in accordance with detected intensity of illumination without extra signal of driver. It consists of autolight sensor, multifunction switch and head/tail lamp, and operates when the light switch is moved to AUTO position. Autolight sensor detects intensity of illumination and transforms it to voltage value and delivers it to BCM. According to this signal, BCM turns on or off head/tail lamp.

DTC Description

The ECM sets DTC B1901 if the supply voltage of autolight sensor is out of range.

DTC Detecting Condition





Specification

** Operation of head/tail lamp as a function of Autolight Sensor's's Input voltage.






Schematic Diagram