Trunk Key Cylinder Switch

TRUNK KEY CYLINDER SWITCH

Component Function Check


1. CHECK FUNCTION

1.Select "KEY CYL SW-TR" in "Data Monitor" mode of "THEFT ALM" of "BCM" using CONSULT.
2.Check the indication under the following conditions.





Is the inspection result normal?
YES- Trunk key cylinder switch is OK.
NO- .


Diagnosis Procedure


1. CHECK TRUNK KEY CYLINDER SWITCH INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect trunk key cylinder switch connector.
3.Check voltage between trunk key cylinder switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 2.

2. CHECK TRUNK KEY CYLINDER SWITCH SIGNAL CIRCUIT

1.Disconnect BCM connector.
2.Check continuity between BCM harness connector and trunk key cylinder switch harness connector.





3.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. REPLACE BCM

1.Replace BCM. Service and Repair.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- INSPECTION END

4. CHECK TRUNK KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between trunk key cylinder switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

5. CHECK TRUNK KEY CYLINDER SWITCH

.
Is the inspection result normal?
YES- GO TO 6.
NO- Replace trunk key cylinder switch.

6. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK TRUNK KEY CYLINDER SWITCH

1.Turn ignition switch OFF.
2.Disconnect trunk key cylinder switch connector.
3.Check continuity between trunk key cylinder switch terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace trunk key cylinder switch.