Inspection Procedure

1. Check the Data List to ensure proper function of the door unlock detection switch.

   BODY (Body ECU): 

   DIAGNOSTIC NOTE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Rear Lock Position 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. 

NG: Go to step 2 

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

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

   Standard resistance 

   MEASUREMENT SPECIFIED CONDITION CHART
   
   

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

Fig 1: Inspecting Rear Door Lock Assembly (Unlock Detection Switch)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE REAR DOOR LOCK ASSEMBLY 

OK: Go to next step 

1. Disconnect the rear door lock assembly connector.
2. Disconnect the instrument panel J/B connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   D13-6 (LSSR) - 1P-5	Always	Below 1 Ω
   D13-9 (E) - Body ground	Always	Below 1 Ω

Fig 2: Checking Wire Harness (Rear Door Lock Assembly - Instrument Panel J/B (Body ECU))
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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