Inspection Procedure

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

   OK 

   FRONT DOOR LOCK MOTOR ASSEMBLY LH MEASUREMENT CONDITION
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) → Terminal 4 (L) Battery negative (-) → Terminal 1 (UL)	Lock
   Battery positive (+) → Terminal 1 (UL) Battery negative (-) → Terminal 4 (L)	Unlock

   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
   N4-4 (L) - DD-3 (ACT+)	Always	Below 1 Ω
   N4-1 (UL) - J4-5 (ACTD)
   DD-3 (ACT+) - Body ground	Always	10 kΩ or higher
   J4-5 (ACTD) - 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