Diagnosis Procedure

REAR WINDOW DEFOGGER SWITCH


Diagnosis Procedure

1. CHECK A/C AND AV SWITCH ASSEMBLY (REAR WINDOW DEFOGGER SWITCH) CIRCUIT
Does rear window defogger switch operate normally?
Is the inspection result normal?
YES - Inspection End.
NO - GO TO 2
2. CHECK HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect BCM and A/C and AV switch assembly.
3. Check continuity between BCM connector (A) and A/C and AV switch assembly connector (B).





4. Check continuity between BCM connector (A) and ground.





Is the inspection result normal?
YES - Replace A/C and AV switch assembly. Refer to Service and Repair.
NO - Repair or replace harness.