Without Auto A/C

REAR WINDOW DEFOGGER SWITCH:_:WITHOUT AUTO A/C

WITHOUT AUTO A/C





Description
- The rear window defogger is operated by turning the rear window defogger switch ON.
- The indicator lamp in the rear window defogger switch illuminates when the rear window defogger is operating.


REAR WINDOW DEFOGGER SWITCH:_:WITHOUT AUTO A/C





Component Function Check
1.CHECK FUNCTION
Check (REAR DEF SW) in BCM "DATA MONITOR"mode using CONSULT-III when rear window defogger switch is ON.
Is the inspection result normal?
YES - Rear window defogger switch function is OK.
NO - SEE Diagnosis Procedure




Diagnosis Procedure
1.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect A/C control connector.
3. Check voltage between A/C control harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and A/C control harness connector.





3. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation With Intelligent Key System (With Intelligent Key system) or Removal And Installation (Without Intelligent Key system).
NO - Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between A/C control harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK REAR WINDOW DEFOGGER SWITCH
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace A/C control. Removal And Installation.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
Is the inspection result normal?
- INSPECTION END




Component Inspection
1.CHECK REAR WINDOW DEFOGGER SWITCH
1. Turn ignition switch OFF.
2. Disconnect A/C control connector.
3. Check continuity between A/C control terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace A/C control. Removal And Installation.