DOOR SWITCH

With CONSULT-III
Check door switches (“DOOR SW-DR”, “DOOR SW-AS”) in Data Monitor” mode with CONSULT-III.

Monitor item	Condition
DOOR SW-DR	CLOSE → OPEN: OFF → ON
DOOR SW-AS

YES >>Door switch is OK.

NO>>Refer to 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
   Driver side	B21	2	Ground
   Passenger side	B221	2

   
   

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
   M123	150	B21 (Driver side)	2	Existed
   	124	B221 (Passenger side)

   
   
3. Check continuity between BCM harness connector and ground.
   

   BCM		Ground	Continuity
   Connector	Terminal
   M123	150 (Driver side)		Not existed
   	124 (Passenger side)

   
   

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

NO>>Repair or replace harness.

Refer to Component Inspection.

YES>>GO TO 4.

NO>>Replace malfunctioning door switch. Refer to Removal and Installation.

Refer to Intermittent Incident.

>>INSPECTION END

1. Turn ignition switch OFF.
2. Disconnect malfunction front door switch connector.
3. Check front door switch.

(+)			(-)	Condition		Continuity
Door switch
Connector		Terminal
Driver side	B21	2	Ground part of front door switch	Door switch	pressed	Not existed
					released	Existed
Passenger side	B221				pressed	Not existed
					released	Existed

YES>>Door switch is OK.

NO>>Replace malfunctioning door switch. Refer to Removal and Installation.