Trunk/Liftgate Sensor/Switch (For Alarm): Testing and Inspection

TRUNK LAMP SWITCH

Description

Detects trunk open/close condition.


Component Function Check


1. CHECK FUNCTION

With CONSULT
Check TRNK/HAT MNTR in Data Monitor mode with CONSULT.





Is the inspection result normal?
YES- Trunk room lamp switch is OK.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.

1. CHECK TRUNK LAMP SWITCH INPUT SIGNAL

1.Turn ignition switch OFF.





2.Check voltage between BCM connector and ground.





Is the inspection result normal?
YES- GO TO 6
NO- GO TO 2

2. CHECK TRUNK LAMP SWITCH CIRCUIT

1.Disconnect BCM connector.





2.Check continuity between BCM connector and trunk lamp switch and trunk release solenoid connector.





3.Check continuity between BCM connector and ground.





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace harness between BCM and trunk lamp switch and trunk release solenoid.

3. CHECK TRUNK LAMP SWITCH GROUND CIRCUIT

Check continuity between trunk lid lock assembly connector and ground.





Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace trunk lamp switch and trunk release solenoid ground circuit.

4. CHECK BCM OUTPUT SIGNAL

1.Insure trunk remains closed during this step.
2.Connect BCM connector.





3.Check voltage between BCM connector and ground.





Is the inspection result normal?
YES- GO TO 5
NO- Replace BCM. Service and Repair.

5. CHECK TRUNK ROOM LAMP SWITCH

.
Is the inspection result normal?
YES- GO TO 6
NO- Replace trunk lamp switch and trunk release solenoid.

6. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- Inspection End.


Component Inspection


1. CHECK TRUNK LAMP SWITCH

1.Turn ignition switch OFF.
2.Disconnect trunk lamp switch and trunk release solenoid connector.
3.Check trunk lamp switch.





Is the inspection result normal?
YES- Inspection End.
NO- Replace trunk lamp switch and trunk release solenoid.