Inspection Procedure

1. Check the Data List to ensure proper functioning of the door key lock and unlock switch.
   1. Techstream

      Main Body 

      TECHSTREAM DATA LIST - MAIN BODY
      
      

      Tester Display	Measurement item/Range	Normal Condition	Diagnostic Note
      Door Key SW-Lock	Driver door lock/unlock switch lock signal (Key-linked lock switch) / ON or OFF	ON: Driver side door key cylinder is turned to lock position OFF: Driver side door key cylinder is not turned	-
      Door Key SW-Unlock	Driver door lock/unlock switch unlock signal (Key-linked unlock switch) / ON or OFF	ON: Driver side door key cylinder is turned to unlock position OFF: Driver side door key cylinder is not turned	-
      D Door Key SW-UL	Driver door lock/unlock switch unlock signal (2 step key-linked unlock switch) / ON or OFF	ON: Driver side door key cylinder is turned to unlock position OFF: Driver side door key cylinder is not turned	-

      OK: The display is as specified in the normal condition column. 

NG: Go to step 2 

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

1. Remove the front door lock motor LH (see REMOVAL  ).
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   FRONT DOOR LOCK MOTOR ASSEMBLY LH (DOOR KEY LOCK AND UNLOCK SWITCH) STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   7 (E) - 9 (L)	ON (Door lock set to LOCK)	Below 1 Ω
   7 (E) - 9 (L) 7 (E) - 10 (UL)	OFF (Free)	10 kΩ or higher
   7 (E) - 10 (UL)	ON (Door lock set to UNLOCK)	Below 1 Ω

   Fig 1: Identifying Front Door Lock Motor LH Lock And Unlock Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY LH  (see REMOVAL  )

OK: Go to next step 

1. Disconnect the N4 door lock connector.
2. Disconnect the DD and J4 ECU connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   HARNESS AND CONNECTOR (FRONT DOOR LOCK MOTOR LH - MAIN BODY ECU) STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   N4-9 (L) - DD-53 (L2)	Always	Below 1 Ω
   N2-10 (UL) - J4-10 (UL3)
   N4-7 (E) - Body ground
   N4-10 (UL) - Body ground	Always	10 kΩ or higher
   N4-9 (L) - Body ground

   Fig 2: Identifying Front Door Lock Motor LH And Main Body ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU