Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect malfunctioning door switch connector.
3. Check signal between malfunctioning door switch harness connector and ground with oscilloscope.

   (+)			(-)	Signal (Reference value)
   Door switch
   Connector		Terminal
   Front LH	B16	2	Ground
   Front RH	B216
   Rear LH	B23
   Rear RH	B223

   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 door switch harness connector.

   BCM		Door switch		Continuity
   Connector	Terminal	Connector	Terminal
   M121	47	B16 (Front LH)	2	Existed
   	45	B216 (Front RH)
   	48	B23 (Rear LH)
   	46	B223 (Rear RH)

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M121	47		Not existed
   	45
   	48
   	46

   Is the inspection result normal? 

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

   NO: Repair or replace harness.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: GO TO 4.

NO: Replace malfunctioning door switch.

Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END