Inspection Procedure

1. Use the Data List to check the function of the power window regulator master switch.
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON and turn the tester on.
   3. Read the indication displayed on the tester.

      Main body 

      MAIN BODY REFERENCE
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Communication D-Door Motor	Connection status between power window regulator motor assembly (driver side) and main body ECU / OK or Stop	OK: Connection Stop: No connection	-

      OK: 

      OK is displayed on Techstream screen. 

NG: GO TO ENGINE IMMOBILISER SYSTEM (B2785)  

OK: Go to Next Step 

1. Check the power window operation function after the ignition switch is turned off.

   Result 

   RESULT REFERENCE
   
   

   Status	Proceed to
   When power window can still be operated even after opening driver door and passenger door within approximately 45 seconds of ignition switch being turned off	A
   When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch turned off	B

B: REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) 

A: Go to Next Step 

1. Use the Data List to check the driver side door courtesy switch signal.
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON and turn the tester on.
   3. Read the indication displayed on the tester.

      Main body 

      MAIN BODY REFERENCE
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      D Door Courtesy SW	Driver side door courtesy switch signal / ON or OFF	ON: Driver door open OFF: Driver door closed	-
      P Door Courtesy SW	Front passenger side door courtesy switch signal / ON or OFF	ON: Front passenger door open OFF: Front passenger door closed	-

      OK: 

      OK is displayed on Techstream screen. 

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

NG: Go to Next Step 

1. Measure the resistance of the switch.

   Standard resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - Switch body	Pushed	10 kΩ or higher
   1 - Switch body	Not pushed	Below 1 Ω

Fig 1: Inspecting Front Door Courtesy Light Switch Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE DOOR COURTESY LIGHT SWITCH ASSEMBLY 

OK: Go to Next Step 

1. Measure the voltage without removing the IA junction block connector.

   Standard voltage: 

   for Driver side 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Driver Door Condition	Specified Condition
   IA-21 (DCTY) - Body ground	Fully closed	10 to 14 V
   IA-21 (DCTY) - Body ground	Open	Below 1 V

   for Passenger side 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Driver Door Condition	Specified Condition
   IC-14 (PCTY) - Body ground	Fully closed	10 to 14 V
   IC-14 (PCTY) - Body ground	Open	Below 1 V

Fig 2: Identifying Instrument Panel Junction Block Fuses
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

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