1.CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Disconnect trunk lid lock assembly connector.
Check signal between trunk lid lock assembly harness connector and ground using oscilloscope.
(+)
(–)
Condition
Signal
(Reference value)
Trunk lid lock assembly
Connector
Terminal
B352
1
Ground
Trunk lid
Open
0
Close
Is the inspection result normal?
YES
>>
GO TO 3.
NO
>>
GO TO 2.
2.CHECK TRUNK ROOM LAMP SWITCH CIRCUIT
Disconnect BCM connector.
Check continuity between BCM harness connector and trunk lid lock assembly harness connector.
BCM
Trunk lid lock assembly
Continuity
Connector
Terminal
Connector
Terminal
M121
50
B352
1
Existed
Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M121
50
Not existed
Is the inspection result normal?
YES
>>
Replace BCM. Refer to
Removal and Installation
.
NO
>>
Repair or replace harness.
3.CHECK TRUNK ROOM LAMP SWITCH GROUND CIRCUIT
Check continuity between trunk lid lock assembly connector and ground.
Trunk lid lock assembly
Ground
Continuity
Connector
Terminal
B352
2
Existed
Is the inspection result normal?
YES
>>
GO TO 4.
NO
>>
Repair or replace harness.
4.CHECK TRUNK ROOM LAMP SWITCH
Refer to
Component Inspection
.
Is the inspection result normal?
YES
>>
GO TO 5.
NO
>>
Replace trunk lid lock assembly. Refer to
Removal and Installation
.
5.CHECK INTERMITTENT INCIDENT
Refer to
Intermittent Incident
.
>>
INSPECTION END.