Inspection Procedure

1. Check that the power window AUTO UP/DOWN function operates normally.

   HINT:

   • If the function works normally, go to step A.
   • If the function with the driving position memory switch does not work normally, go to step B.
   • If the function without the driving position memory switch does not work normally, go to step C.

1. B: Go to step 2 
2. C: Go to step   4 
3. A: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

1. Check that the remote control mirror functions operate normally.

1. NG: Go to step   4 
2. OK: Go to next step. 

1. Select the ACTIVE TEST, use the hand-held tester to generate a control command, and then check that the driver side power window operates.

   Standard (Power window regulator master switch (Driver door ECU)): 

   ACTIVE TEST (POWER WINDOW REGULATOR MASTER SWITCH (DRIVER DOOR ECU))
   
   

   Item	Test Detail	Diagnostic Note
   P/W UP/DOWN	Operates power window UP/DOWN	-

1. NG: Go to step   6 
2. OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

1. Remove the ECU-B fuse from the F/L block.
2. Remove the ECU-IG NO. 1 fuse and PWR M-fuse from the instrument panel J/B.
3. Check the resistance.

   Standard: Below 1 Ω 

1. NG: REPLACE FUSE 
2. OK: Go to next step. 

1. Select the ACTIVE TEST, use the hand-held tester to generate a control command, and then check that the driver side power window operates.

   Standard (Power window regulator master switch (Driver door ECU)): 

   ACTIVE TEST (POWER WINDOW REGULATOR MASTER SWITCH (DRIVER DOOR ECU))
   
   

   Item	Test Detail	Diagnostic Note
   P/W UP/DOWN	Operates power window UP/DOWN	-

1. NG: Go to step   8 
2. OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

1. Disconnect the P22 master switch connector.
Fig 1: Identifying Power Window Regulator Master Switch Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the voltage between the wire harness side connector and the body ground.

   Standard: 

   POWER WINDOW REGULATOR MASTER SWITCH TERMINALS VOLTAGE
   
   

   Tester Connection	Condition	Specified Condition
   P22-9 (CPUB) - Body ground	Constant	10 to 14 V
   P22-10 (BDR) - Body ground
   P22-20 (SIG) - Body ground	Ignition switch ON

1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
2. OK: Go to next step. 

1. Disconnect the P22 master switch connector.
Fig 2: Identifying Power Window Regulator Master Switch Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the resistance between the wire harness side connector and body ground.

   Standard: 

   POWER WINDOW REGULATOR MASTER SWITCH TERMINALS RESISTANCE
   
   

   Tester Connection	Specified Condition
   P22-2 (GND) - Body ground	Below 1 Ω

1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
2. OK: Go to next step. 

1. Disconnect the P22 master switch connector.
2. Disconnect the P23 power window motor connector.
Fig 3: Identifying Power Window Master Switch And Power Window Regulator Motor Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the resistance of the wire harness side connectors.

   Standard: 

   RESISTANCE BETWEEN POWER WINDOW MASTER SWITCH AND POWER WINDOW REGULATOR MOTOR CONNECTOR TERMINALS
   
   

   Tester Connection	Specified Condition
   P22-1 (UP) - P23-2 (U)	Below 1 Ω
   P22-1 1 (DN) - P23-1 (D)
   P22-1 (UP) - Body ground	10 kΩ or higher
   P22-11 (DN) - Body ground

1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
2. OK: Go to next step. 

1. Remove the master switch (the connector is connected).
2. Turn the ignition switch ON.
Fig 4: Identifying Power Window Regulator Master Switch Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the voltage between the terminals.

   Standard: 

   POWER WINDOW REGULATOR MASTER SWITCH TERMINALS VOLTAGE
   
   

   Switch Condition	Tester Connection	Specified Condition
   UP	P22-1 (UP) - P-22-2 (GND)	10 to 14 V
   DOWN	P22-11 (DN) - P22-2 (GND)

1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
2. OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER SIDE) 

Reference:

Check operation of the power window motor (driver side).

1. Remove the motor (See OVERHAUL ).
2. Apply battery voltage to terminals 1 and 2.
3. Check that the motor rotates smoothly.
   Fig 5: Checking Operation Of Power Window Motor (Driver Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE: Do not apply battery voltage to any terminal except 1 and 2.

   Standard: 

   POWER WINDOW REGULATOR MOTOR MEASUREMENT CONDITION AND SPECIFIED CONDITION
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) --> 1 Battery negative (-) --> 2	Motor gear rotates counterclockwise
   Battery positive (+) --> 2 Battery negative (-) --> 1	Motor gear rotates clockwise