Inspection Procedure

1. Check the DATA LIST to ensure proper function of the door unlock detection switch.

   BODY (Main Body ECU): 

   BODY (MAIN BODY ECU)
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   Rr LOCK POS SW	Rear door lock position switch signal /ON or OFF	ON: Rear door lock is in UNLOCK position OFF: Rear door lock is in LOCK position	-

   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 rear door lock assembly LH.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   REAR DOOR LOCK ASSEMBLY (UNLOCK DETECTION SWITCH)
   
   

   Tester Connection	Measurement Condition	Door Lock Condition	(Specified Condition)
   6 - 9	Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 1	Lock	10 kΩ or higher
   6 - 9	Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 4	Unlock	Below 1 Ω

   Fig 1: Identifying Rear Door Lock Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE REAR DOOR LOCK ASSEMBLY 

OK: Go to next step 

1. Disconnect the rear door lock assembly LH connector.
2. Disconnect the ECU (cowl side J/B RH) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   WIRE HARNESS (REAR DOOR LOCK ASSEMBLY - MAIN BODY ECU RH)
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   O8-6 (LSSR) - RA-2	Always	Below 1 Ω
   O8-9 (E) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying Rear Door Lock Assembly And Main Body ECU RH Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH)