Component Function Check

Component Function Check

1. CHECK FUNCTION

   1. CONSULT

      1. Select "Door switch AS", "Door switch DR", "Door switch RL" or "Door switch RR" in "Data Monitor" mode of "BCM(DOOR LOCK)".

      2. Check that the function operates normally according to the following conditions:

      Monitor Item	Condition		Status
      DOOR switch DR	Front door LH	Open	On
      		Closed	Off
      DOOR switch AS	Front door RH	Open	On
      		Closed	Off
      DOOR switch RL	Rear door LH	Open	On
      		Closed	Off
      DOOR switch RR	Rear door RH	Open	On
      		Closed	Off

   Is the inspection result normal?

   YES>>

   Door switch is OK.

   NO>>

   Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

1. CHECK DOOR SWITCH INPUT SIGNAL

   1. 1. Ignition switch OFF.

      2. Disconnect malfunctioning door switch connector.

      3. Check signal between malfunctioning door switch harness connector and ground using oscilloscope.

         (+)			(–)	Signal (Reference value)
         Door switch
         Connector		Terminal
         Front LH	B21	3	Ground	7.0 - 8.0 V
         Front RH	B28
         Rear LH	B26
         Rear RH	B41

   Is the inspection result normal?

   YES >>

   GO TO 3.

   NO >>

   GO TO 2.

2. CHECK DOOR SWITCH CIRCUIT

   1. 1. Disconnect BCM connector.

      2. Check continuity between door switch harness connector and BCM harness connector.

         Door switch			BCM		Continuity
         Connector		Terminal	Connector	Terminal
         Front LH	B21	3	M85	81	Yes
         Front RH	B28			93
         Rear LH	B26			94
         Rear RH	B41			95

      3. Check continuity between door switch harness connector and ground.

         Door switch			—	Continuity
         Connector		Terminal
         Front LH	B21	3	Ground	No
         Front RH	B28
         Rear LH	B26
         Rear RH	B41

   Is the inspection result normal?

   YES >>

   Replace BCM. Refer to Removal and Installation.

   NO >>

   Repair or replace harness.

3. CHECK DOOR SWITCH

   1. Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   GO TO 4.

   NO >>

   Replace malfunctioning door switch. Refer to Removal and Installation.

4. CHECK INTERMITTENT INCIDENT

   1. Refer to Intermittent Incident.

   >>

   Inspection End.

Component Inspection

Component Inspection

1. CHECK DOOR SWITCH

   1. 1. Ignition switch OFF.

      2. Disconnect malfunctioning door switch connector.

      3. Check continuity between door switch terminals.

         Door switch		Condition		Continuity
         Terminal
         3	Ground contact is part of the switch.	Door switch	Pressed	No
         			Released	Yes

   Is the inspection result normal?

   YES>>

   Inspection End.

   NO>>

   Replace malfunctioning door switch. Refer to Removal and Installation.