Trunk Lamp Switch

TRUNK LAMP SWITCH





Description
Detects trunk open/close condition.




Component Function Check
1.CHECK FUNCTION
With CONSULT-III
Check TRNK/HAT MNTR in "DATA MONITOR" mode with CONSULT-III.





Is the inspection result normal?
YES - Trunk lamp switch is OK.
NO - SEE Diagnosis Procedure.




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 using an oscilloscope.





Is the inspection result normal?
YES - GO TO 6
NO - GO TO 2
2.CHECK TRUNK LAMP SWITCH CIRCUIT
1. Disconnect BCM and trunk lamp switch and trunk release solenoid connector.





2. Check continuity between BCM connector M21 (A) terminal 130 and trunk lamp switch and trunk release solenoid connector B28
(B) terminal 1.





3. Check continuity between BCM connector M21 (A) terminal 130 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 LAMP SWITCH
SEE Component Inspection.
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.