Inspection Procedure

1. Check the DATA LIST for proper functioning of the door control switch.

   Main body ECU 

   MAIN BODY ECU DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D/L SW-LOCK	Door control switch lock signal/ON or OFF	ON: Door control switch is in LOCK position OFF: Door control switch is not in LOCK position	-
   SW-UNLOCK	Door control switch unlock signal / ON or OFF	ON: Door control switch is in UNLOCK position OFF: Door control switch is not in UNLOCK position	-

   OK : ON (door is locked/unlocked) appears on the screen. 

OK : REPLACE DRIVER SIDE JUNCTION BLOCK 

NG : GO TO NEXT STEP 

1. Measure the resistance of the door control switch.

   Standard resistance 

   TESTER CONNECTION SWITCH CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 5	Lock	Below 1 Ω
   1 - 8	Unlock
   1 - 5	OFF	10 kΩ or higher
   1 - 8

NG : REPLACE POWER WINDOW REGULATOR MASTER SWITCH 

Fig 1: Identifying Door Control Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the P17 switch connector.
2. Disconnect the 1H junction block connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SWITCH CONDITION
   
   

   Tester Connection	Specified Condition
   17-5 (L) - 1H-4 (L1)	Below 1 Ω
   P17-8 (UL) - 1H-5 (UL1)
   P17-1 (E) - Body ground

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 2: Identifying 1H Junction Block Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : REPLACE DRIVER SIDE JUNCTION BLOCK