Power Window Control System: Inspection

1. Measure the resistance of the master switch.

   [Driver's switch (Window unlock and lock)] 

   Standard: 

   DRIVER'S SWITCH TERMINAL RESISTANCE (WINDOW UNLOCK AND LOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	DU (4)-B (6)- B (7)	Below 1Ω
   	E (1)-E (3)-DD (9)
   OFF	E (1)-E (3)-DU (4)	Below 1Ω
   	E (1)-E (3)-DD (9)
   DOWN	E (1)-E (3)-DU (4)	Below 1Ω
   	B (6)-B (7 )-DD (9)
   AUTO DOWN	E (1)-E (3)-DU (4)	Below 1Ω
   	B (6)-B (7)-DD (9)

   Fig 2: Identifying Power Window Master Switch Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   [Front passenger's switch (Window unlock)] 

   Standard: 

   FRONT PASSENGER TERMINAL RESISTANCE (WINDOW UNLOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	E (1)-E (3)-PD (15)	Below 1Ω
   	B (6)-B (7)-PU (18)
   OFF	E (1)-E (3)-PD (15)	Below 1Ω
   	E (1)-E (3)-PU (18)
   DOWN	E (1)-E (3)-PU (18)	Below 1Ω
   	B (6)-B (7)-PD (15)

   [Front passenger's switch (Window lock)] 

   Standard: 

   FRONT PASSENGER TERMINAL RESISTANCE (WINDOW LOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	B (6)-B (7)-PU (18)	Below 1Ω
   OFF	PD (15) - PU (18)	Below 1Ω
   DOWN	B (6)-B (7)-PD (15)	Below 1Ω

   [Rear left switch (Window unlock)] 

   Standard: 

   REAR LEFT SWITCH TERMINAL RESISTANCE (WINDOW UNLOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	E (1)-E (3)-RLD (13)	Below 1Ω
   	B (6)-B (7)-RLU (12)
   OFF	E (1)-E (3)-RLD (13)	Below 1Ω
   	E (1)-E (3)-RLU (12)
   DOWN	E (1)-E (3)-RLU (12)	Below 1Ω
   	B (6)-B (7)-RLD (13)

   [Rear left switch (Window lock)] 

   Standard: 

   REAR LEFT SWITCH TERMINAL RESISTANCE (WINDOW LOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	B (6)-B (7)-RLU (12)	Below 1Ω
   OFF	RLU (12)-RLD (13)	Below 1Ω
   DOWN	B (6)-B (7)-RLD (13)	Below 1Ω

   [Rear right switch (Window unlock)] 

   Standard: 

   REAR RIGHT SWITCH TERMINAL RESISTANCE (WINDOW UNLOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	B (6)-B (7) -RRU (10)	Below 1Ω
   	E (1)-E (3) -RRD (16)
   OFF	E (1)-E (3)-RRU (10)	Below 1Ω
   	E (1)-E (3)-RRD (16)
   DOWN	E (1)-E (3)-RRU (10)	Below 1Ω
   	B (6)-B (7)-RRD (16)

   [Rear right switch (Window lock)] 

   Standard: 

   REAR RIGHT SWITCH TERMINAL RESISTANCE (WINDOW LOCK)
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	B(6)-(7)-RRU(10)	Below 1Ω
   OFF	RRU(10)-RRD(16)	BelowΩ
   D0WN	B(6)-B(7)-RRD(16)	BelowΩ

   If the result is not as specified, replace the master switch.

2. Inspect the master switch illumination

   Standard: 

   Fig 3: Inspecting Master Switch Illumination (1 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 4: Inspecting Master Switch Illumination (2 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the master switch.

HINT:

All the regulator switches (front passenger, rear left, rear right) should be inspected in the same procedure,

1. Measure the resistance of the regulator switch.
   Fig 5: InspectING Power Window Regulator Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard: 

   TERMINAL RESISTANCE
   
   

   Switch Position	Tester Connection	Specified Condition
   UP	D(1)-SD(2)	Below 1Ω
   	U(3)-B(4)
   OFF	D(1)-SD(2)	Below 1Ω
   	U (3) - SU (5)
   DOWN	D(1)-B(4)	Below 1Ω
   	U (3) - SU (5)

If the result is not as specified, replace the regulator switch.

1. Inspect the regulator motor operation.

   HINT:

   • Driver's side and rear RH regulator motors should be inspected in the same procedure.
   • Passenger's side and rear LH regulator motors should be inspected in the same procedure.
   1. Check that the motor operates smoothly when battery positive voltage is applied to each terminal of the connector.
   Fig 6: Checking That Motor Operates Smoothly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard [Driver's side and rear RH side]: 

   Fig 7: Battery Operational Specification Chart (Driver'S Side And Rear RH Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard [Front passenger's side and rear LH side]: 

   Fig 8: Battery Operational Specification Chart (Front Passenger'S Side And Rear LH Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   If the result is not as specified, replace the motor.

2. Inspect the PTC operation inside the regulator motor.
   NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle.
   1. Set a DC 400 Amp probe of the TOYOTA electrical tester to terminal 4 or 5 of the wire harness.
      Fig 9: Identifying Fully Closed Position

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Match the arrow mark of the probe with the current direction.
   2. Set the door glass to the fully closed position.
   3. When 60 seconds have elapsed after the door glass is fully closed, turn the power window switch UP once again. Check how long it takes for the current to change from approximately 16 to 34 A into 1 A or less.

      Standard: Approximately 4 to 90 seconds 

   4. When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass moves down when the power window regulator switch is turned DOWN.

If the result is not as specified, replace the motor.

Fig 10: Checking Door Glass Movement In Down Direction

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the P/W relay from the instrument panel J/B.
2. Measure the resistance of the relay.

If the result is not as specified, replace the relay.

Fig 11: Identifying P/W Relay Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002