Inspection Procedure

1. Check the Data List to ensure proper functioning of the unlock detection switch.
   1. Techstream

      Main Body 

      TECHSTREAM DATA LIST - MAIN BODY
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      D-Door Lock Pos SW	Driver side door unlock detection switch signal / ON or OFF	ON: Driver side door is unlocked OFF: Driver side door is locked	-

      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 (UNLOCK DETECTION SWITCH) STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   8 (LSSR) - 7 (E)	Lock	10 kΩ or higher
   	Unlock	Below 1 Ω

   Fig 1: Inspecting Front Door Lock Motor Assembly LH (Unlock Detections Switch)

   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.
Fig 2: Identifying N4 Door Lock And J4 ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the J4 ECU connector.
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 AND BODY GROUND) STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   N4-8 (LSSR) - J4-9 (LSWD)	Always	Below 1 Ω
   N4-8 (LSSR) - Body ground	Always	10 kΩ or higher
   N4-7 (E) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU