Diagnosis Procedure

OPTICAL SENSOR


Diagnosis Procedure

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. Refer to Auto Light System.
NO - Repair harness or connector.