Optical Sensor

OPTICAL SENSOR





Description
The optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to the BCM.




Component Function Check
1.CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III
CONSULT-III
1. Turn the ignition switch ON.
2. Select "OPTICAL SENSOR" of BCM (HEAD LAMP) DATA MONITOR item.
3. Turn the lighting switch to AUTO.
4. With the optical sensor illuminating, check the monitor status.





Is the item status normal?
YES - Optical sensor is normal.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, Auto Light System.
1.CHECK OPTICAL SENSOR GROUND CIRCUIT





1. Turn the ignition switch OFF.
2. Disconnect BCM connector M18 and optical sensor connector
M302.
3. Check continuity between BCM harness connector M18 (A) terminal 18 and optical sensor harness connector M302 (B) terminal 3.





4. Check continuity between BCM harness connector M18 (A) terminal 18 and ground.





Are continuity test results as specified?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK OPTICAL SENSOR SIGNAL CIRCUIT





1. Check continuity between BCM harness connector M20 (A) terminal 58 and optical sensor harness connector M302 (B) terminal 4.





2. Check continuity between BCM harness connector M20 (A) terminal 58 and ground.





Are the continuity test results as specified?
YES - Replace the optical sensor. Auto Light System.
NO - Repair harness or connector.