TRUNK ROOM LAMP SWITCH

With CONSULT-III
Check (“TRNK/HAT MNTR”) in Data Monitor mode with CONSULT-III.

Monitor item	Condition
TRNK/HAT MNTR	OPEN	: ON
	CLOSE	: OFF

YES>>Trunk room lamp switch is OK.

NO>>Refer to Component Inspection.

1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly connector.
3. Check signal between trunk lid lock assembly harness connector and ground with oscilloscope.
   

   (+)		(–)	Trunk condition	Signal (Reference value)
   Trunk lid lock assembly
   Connector	Terminal
   B352	1	Ground	OPEN	0
   			CLOSE

   
   

YES>>GO TO 3.

NO>>GO TO 2.

1. Disconnect BCM connector.
2. 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

   
   
3. Check continuity between BCM harness connector and ground.
   

   BCM		Ground	Continuity
   Connector	Terminal
   M121	50		Not existed

   
   

YES>>Replace BCM. Refer to Removal and Installation.

NO>>Repair or replace harness.

Check continuity between trunk lid lock assembly connector and ground.

Trunk lid lock assembly		Ground	Continuity
Connector	Terminal
B352	2		Existed

YES>>GO TO 4.

NO>>Repair or replace harness.

Refer to Component Inspection.

YES>>GO TO 5.

NO>>Replace trunk lid lock assembly. Refer to Removal and Installation.

Refer to Intermittent Incident.

>>INSPECTION END.

1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly connector.
3. Check trunk room lamp switch.
   

   Trunk lid lock assembly		Condition		Continuity
   Terminal
   1	2	Trunk lid	OPEN	Existed
   			CLOSE	Not existed

   
   

YES>>INSPECTION END.

NO>>Replace trunk lid lock assembly. Refer to Removal and Installation.