Power Window Control System (Convertible) - Diagnostics: Inspection

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY

Remove the master switch (see OVERHAUL ).

Measure the resistance of the switch when the switch is operated.

Fig 1: Measuring Resistance Of Power Window Regulator Master Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

Driver switch

Fig 2: Power Window Regulator Specifications Table (Driver Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Passenger switch

Fig 3: Power Window Regulator Specifications Table (Passenger Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Window lock switch

WINDOW LOCK SWITCH RESISTANCE SPECIFICATION

Window Lock Switch Condition	Tester Connection	Specified Condition
ON	1 (E) - 18 (WLSW)	Below 1 Ω

Check the master switch AUTO lamp.

Fig 4: Checking Master Switch Auto Lamp
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Fig 5: Auto Lamp Illuminating Condition Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

INSPECT POWER WINDOW REGULATOR SWITCH ASSY
1. Remove the power window switch (see OVERHAUL ).
2. Measure the resistance of the switch when the switch is operated.
  
  Fig 6: Measuring Resistance Of Power Window Regulator Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
Fig 7: Power Window Switch Resistance Specification Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the regulator switch assy.
INSPECT ALL WINDOW SWITCH
1. Remove the all window switch.
2. Measure the resistance of the switch when the switch is operated.
  
  Fig 8: Measuring Resistance Of All Window Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
Fig 9: All Window Switch Resistance Specification Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the switch.
INSPECT POWER WINDOW REGULATOR MOTOR ASSY
1. Check operation of the regulator motor LH/RH.
  1. Remove the power window regulator motor LH/RH (see OVERHAUL ).
  2. Apply battery voltage to the motor terminals.
    NOTE: Do not apply voltage to the terminals except 1 and 2.
  3. Check that the motor operates smoothly.
    
    Fig 10: Checking Motor Gear Operates Smoothly
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  OK:
  
  LH: (Driver side)
  
  Fig 11: Power Window Regulator Motor Operating Condition Table (LH Driver Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  RH (Passenger side)
  
  Fig 12: Power Window Regulator Motor Operating Condition Table (RH Passenger Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the motor assy.
2. Check the PTC operation inside the regulator motor.
  NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle.
  
  Fig 13: Checking PTC Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the driver side power window regulator motor.
  2. Connect the ammeter's positive (+) lead to terminal 2 of the wire harness side connector and the negative (-) lead to the battery's negative terminal.
  3. Connect the battery's positive (+) lead to terminal 1 of the wire harness side connector, and raise the window to the fully closed position.
  4. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds.
  5. Disconnect the leads from the terminals.
  6. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 2 and the negative (-) lead to terminal 1, and check that the window begins to descend.
If the result is not as specified, replace the motor assy.
INSPECT QUARTER WINDOW REGULATOR MOTOR ASSY
1. Check operation of the regulator motor LH/RH.
  1. Remove the quarter power window regulator motor LH/RH (see REPLACEMENT ).
  2. Apply battery voltage to the motor terminals.
    NOTE: Do not apply voltage to the terminals except 1 and 2.
  3. Check that the motor operates smoothly.
    
    Fig 14: Checking Motor Operates Smoothly
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  OK:
  
  LH
  
  Fig 15: Quarter Window Regulator Motor Gear Operating Condition Table (LH)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  RH
  
  Fig 16: Quarter Window Regulator Motor Gear Operating Condition Table (RH)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the motor assy.
2. Check the PTC operation inside the regulator motor LH/RH.
  NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle.
  
  Fig 17: Checking PTC Operation Inside Regulator Motor LH/RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the driver side power window regulator motor.
  2. Connect the ammeter's positive (+) lead to terminal 2 of the wire harness side connector and the negative (-) lead to the battery's negative terminal.
  3. Connect the battery's positive (+) lead to terminal 1 of the wire harness side connector, and raise the window to the fully closed position.
  4. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds.
  5. Disconnect the leads from the terminals.
  6. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 2 and the negative (-) lead to terminal 1, and check that the window begins to descend.
If the result is not as specified, replace the motor assy.

INSPECT RELAY (IG1, PWR)

Remove the IG1 and PWR relays from the instrument panel J/B.
Measure the resistance of the relays.

Fig 18: Inspecting Relay (IG1 & PWR)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

IG1 AND PWR RELAYS RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

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