Inspection Procedure

1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the doors lock / unlock.

   Main body ECU 

   MAIN BODY ECU ACTIVE TEST REFERENCE
   
   

   Item	Test Details	Diagnostic Note
   D DOOR UNLOCK	Operate driver side door unlock ON / OFF	-

   OK: Doors can lock / unlock. 

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 

NG: Go TO NEXT STEP. 

1. Use the DATA LIST to check if the door lock is functioning properly.

   Main body ECU 

   MAIN BODY ECU DATA LIST REFERENCE
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D LOCK POS SW	Driver side door lock position switch signal ON / OFF	ON: Driver side door is unlocked OFF: Driver side door is locked	-

   OK: When the door lock is operating, the intelligent tester should display as shown in the table. 

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 

NG: Go TO NEXT STEP. 

1. Apply the battery voltage to the motor terminals and check the operation of the door lock motor.

   OK 

   DOOR LOCK MOTOR OPERATION CONDITIONS
   
   

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

2. Measure the resistance of the door lock position switch.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITIONS
   
   

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

   Fig 1: Inspecting Front Door With Motor Lock Assembly LH

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR WITH MOTOR LOCK ASSEMBLY LH 

OK: Go TO NEXT STEP. 

Fig 2: Identifying H5 Door Lock, E15 ECU And IH Junction Block Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the H5 door lock connector.
2. Disconnect the E15 ECU connector.
3. Disconnect the IH junction block connector.
4. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITIONS
   
   

   Tester Connection	Specified Condition
   H5-1 (UL) - E15-5 (ACTD)	Below 1 Ω
   H5-4 (L) - IH-8 (ACT+)	Below 1 Ω
   H5-8 (LSSR) - E15-25 (LSWD)	Below 1 Ω
   H5-9 (L) - IH-7 (L2)	Below 1 Ω
   H5-10 (UL) - E15-9 (UL3)	Below 1 Ω
   H5-7 (E) - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)