Power Window Control System - Diagnosis: Inspection

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY
1. Remove the master switch (see OVERHAUL ).
2. Measure the resistance between the terminals of the connector when the switch is operated.
  Standard:
  
  Fig 1: Terminals Resistance Reference Chart (Driver Switch)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Terminals Resistance Reference Chart (Passenger Switch)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Terminals Resistance Reference Chart (Rear LH Switch)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 4: Terminals Resistance Reference Chart (Rear RH Switch)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 5: Inspecting Power Window Regulator Master Switch Assy
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the window lock switch.
Standard:

Fig 6: Measurement Condition Chart
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 regulator switch (see OVERHAUL and 75-31).
2. Measure the resistance between the terminals of the connector when the switch is operated.
Standard:

Fig 7: Terminals Resistance Reference Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 8: Inspecting Power Window Regulator Switch Assy
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the regulator switch assy.
INSPECT POWER WINDOW REGULATOR MOTOR ASSY (DRIVER SIDE)
1. Check operation of the regulator motor.
  1. Remove the power window regulator motor (see OVERHAUL ).
  2. Apply battery voltage to the motor terminals.
  3. Check that the motor operates smoothly.
  NOTE: Do not apply voltage to the terminals except 4 and 5.
  
  OK: Go to next step.
  
  Fig 9: Measurement Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 10: Inspecting Power Window Regulator Motor Assy (Driver Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
1. Disconnect 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. Check that the window begins to descend.
Fig 11: Checking PTC Operation Inside Regulator Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the motor assy.
INSPECT POWER WINDOW REGULATOR MOTOR ASSY (PASSENGER SIDE)
1. Check operation of the regulator motor.
  1. Remove the power window regulator motor (see OVERHAUL ).
  2. Apply battery voltage to the motor terminals.
  3. Check that the motor operates smoothly.
  NOTE: Do not apply voltage to the terminals except 4 and 5.
  
  OK: Go to next step.
  
  Fig 12: Measurement Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 13: Inspecting Power Window Regulator Motor Assy (Passenger Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
1. Disconnect 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.
  
  Fig 14: Checking PTC Operation Inside Regulator Motor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 2 and the negative (-) lead to terminal 1. Check that the window begin to descend.
If the result is not as specified, replace the motor assy.
INSPECT POWER WINDOW REGULATOR MOTOR ASSY (REAR LH)
1. Check operation of the regulator motor.
  1. Remove the power window regulator motor (see OVERHAUL ).
  2. Apply battery voltage to the motor terminals.
  3. Check that the motor operates smoothly.
  NOTE: Do not apply voltage to the terminals except 4 and 5.
  
  OK: Go to next step.
  
  Fig 15: Measurement Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 16: Inspecting Power Window Regulator Motor Assy (Rear LH)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
1. Disconnect the driver side power window regular 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. Check that the window begins to descend.
If the result is not as specified, replace the motor assy.

Fig 17: Checking PTC Operation Inside Regulator Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT POWER WINDOW REGULATOR MOTOR ASSY (REAR RH)
1. Check operation of the regulator motor.
  1. Remove the power window regulator motor (see OVERHAUL ).
  2. Apply battery voltage to the motor terminals.
  3. Check that the motor operates smoothly.
  NOTE: Do not apply voltage to the terminals except 4 and 5.
  
  OK: Go to next step.
  
  Fig 18: Measurement Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 19: Inspecting Power Window Regulator Motor Assy (Rear RH)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
1. Disconnect 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. Check that the window begins to descend.
If the result is not as specified, replace the motor assy.

Fig 20: Checking PTC Operation Inside Regulator Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002