Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. Perform the Active Test according to the display on the Techstream.
   1. Main Body: 
      ACTIVE TEST DETAIL - MAIN BODY
      
      

      Tester Display	Test Part	Control Range
      Trunk and Back - Door Open	Operate back door open	OFF or ON

      OK: 

      Back door lock is opened. 

NG: Go to step 2 

OK : REPLACE MAIN BODY ECU 

1. Remove the back door lock (see REMOVAL  ).
2. Apply battery voltage and check operation of the door lock motor.

   OK 

   MEASUREMENT CONDITION AND SPECIFIED CONDITION
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) → 1 (ACT-) Battery negative (-) → 2 (ACT+)	Unlock

3. Reinstall the back door lock (see INSTALLATION  ).

Fig 1: Identifying Back Door Lock Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPLACE BACK DOOR LOCK ASSEMBLY  (See REMOVAL  )

OK: Go to next step 

1. Disconnect the L3 back door lock connector.
2. Disconnect the C45 main body ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   L3-2 (ACT+) - C45-1 (TR+)	Always	Below 1 Ω
   L3-1 (ACT-) - Body ground
   L3-2 (ACT+) - Body ground	Always	10 kΩ or higher

4. Reconnect the back door lock connector.
5. Reconnect the main body ECU connector.

Fig 2: Identifying Back Door Lock Motor And Main Body ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE MAIN BODY ECU