Inspection Procedure

1. Check the DATA LIST for proper functioning of the door unlock detection switch.

   Body ECU: 

   BODY ECU DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D/L SW-LOCK	Door lock switch signal (LOCK) / ON or OFF	ON: Door is locked OFF: Door is unlocked	-
   D/L SW-UNLOCK	Door lock switch signal (UNLOCK) / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

   OK: 

   "ON" (door is locked / unlocked) appears on the screen. 

NG: Go to step 2 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

Fig 1: Identifying Door Lock Switch Connector Terminals (Driver Side)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1. Inspect door lock switch (driver side).
   1. Disconnect the multiplex network master switch assembly.
   2. Measure the resistance of the switch when the switch is operated.
      RESISTANCE SPECIFIED CONDITION
      
      

      Tester Connection	Door Lock Condition	Specified Condition
      1 - 8	ON (Door lock set to UNLOCK)	Below 1
      1 - 5	OFF (Door Lock set to LOCK)	Below 1

2. Inspect door lock switch (passenger side).
   Fig 2: Identifying Door Lock Switch Connector Terminals (Passenger Side)

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   1. Disconnect the front passenger door lock switch assembly.
   2. Measure the resistance of the switch when the switch is operated.
      RESISTANCE SPECIFIED CONDITION
      
      

      Tester Connection	Door Lock Condition	Specified Condition
      3 - 5	ON (Door lock set to UNLOCK)	Below 1
      3 - 6	OFF (Door Lock set to LOCK)	Below 1

NG: REPLACE DOOR LOCK CONTROL SWITCH 

OK: GO TO NEXT STEP 

1. Inspect driver side.
   1. Disconnect the H6 connector.
      Fig 3: Disconnecting H6 Connector

      Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   2. Remove the body ECU from instrument panel J/B.
   3. Measure the resistance of the wire harness side connectors.
      RESISTANCE SPECIFIED CONDITION
      
      

      Tester Connection	Condition	Specified Condition
      9 - H6-5 (L1)	Always	Below 1
      12 - H6-8 (UL1)	Always	Below 1
      H6-1 - Body ground	Always	Below 1

2. Inspect passenger side.
   1. Disconnect the G5 connector.
      Fig 4: Disconnecting G5 Connector

      Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   2. Remove the body ECU from instrument panel J/B.
   3. Measure the resistance of the wire harness side connectors.
      RESISTANCE SPECIFIED CONDITION
      
      

      Tester Connection	Condition	Specified Condition
      9 - G5-6 (L1)	Always	Below 1
      12 - G5-5 (UL1)	Always	Below 1
      G5-3 - Body ground	Always	Below 1

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE