Combination Switch Input Circuit

COMBINATION SWITCH INPUT CIRCUIT





Diagnosis Procedure
Regarding Wiring Diagram information, [1][2]Body Control Systems.
1. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN





1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch.
3. Check continuity between BCM harness connector and combination switch harness connector.






Does continuity exist?
YES - GO TO 2
NO - Repair or replace harness.
2. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT





Check for continuity between BCM harness connector and ground.





Does continuity exist?
YES - Repair or replace harness.
NO - GO TO 3
3. CHECK BCM OUTPUT VOLTAGE





1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector and ground.





Is the measurement value normal?
YES - GO TO 4
NO - Replace BCM. Service and Repair.
4. CHECK COMBINATION SWITCH
Check combination switch. Combination Switch.
Is the check result normal?
YES - Replace BCM. Service and Repair.
NO - Replace the combination switch (applicable parts). Service and Repair.




Special Repair Requirement
1. SAVING VEHICLE SPECIFICATION
Perform "READ CONFIGURATION" with CONSULT-III to save or print current vehicle specification.
- GO TO 2
2. REPLACE BCM
Replace BCM. Service and Repair.
- GO TO 3
3. WRITING VEHICLE SPECIFICATION
Perform "WRITE CONFIGURATION - Config file" or "WRITE CONFIGURATION - Manual selection" with
CONSULT-III to write vehicle specification. Special Repair Requirement.
- GO TO 4
4. INITIALIZE BCM (NATS)
Perform BCM initialization. Special Repair Requirement.
- Work End.