Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect trunk lid opener switch connector.
3. Check signal between trunk lid opener switch harness connector and ground using oscilloscope.
   TRUNK LID OPENER SWITCH INPUT SIGNAL REFERENCE CHART
   
   

   (+)		(-)	Signal (Reference value)
   Trunk lid opener switch
   Connector	Terminal
   M20	1	Ground

   Is the inspection result normal? 

   YES: GO TO  3.

   NO: GO TO 2.

1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and trunk lid opener switch harness connector.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   BCM		Trunk lid opener switch		Continuity
   Connector	Terminal	Connector	Terminal
   M121	67	M20	1	Existed

3. Check continuity between BCM harness connector and ground.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   BCM		Ground	Continuity
   Connector	Terminal
   M121	67		Not existed

   Is the inspection result normal? 

   YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

   NO: Repair harness or connector.

Check continuity between trunk lid opener switch harness connector and ground.

Is the inspection result normal? 

YES: GO TO 4.

NO: Repair or replace harness.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: GO TO 5.

NO: Replace trunk lid opener switch. Refer to "REMOVAL AND INSTALLATION ".

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END