Section 422 (Power Window Control System - Diagnostics): Pre-Check

1. Check that operation of the door glasses except for the driver side door glass, the back door glass and the sliding roof is disabled when the window lock switch of the power window master switch is pressed.
2. Check that the door glasses, the back door glass and the sliding roof can be operated when the window lock switch is pressed again.

Fig 1: Identifying Window Lock Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the AUTO switch of the master switch can operate the door glass as follows.

   Standard: 

   Fig 2: Manual Up/Down Switch Specifications (1 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that each power window switch can operate each door glass as follows.

   Standard: 

   Fig 3: Manual Up/Down Switch Specifications (2 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the AUTO switch of the master switch can operate the door glass as follows.

   Standard: 

   Fig 4: AUTO Up/Down Master Switch Specifications

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the power window master switch can operate the door glasses other than the driver side door glass.

   Standard: 

   Fig 5: Remote Up/Down Master Switch Specifications

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. When both of the following conditions are fulfilled, check that the door glasses, the back door glass and the sliding roof can be operated even after the ignition switch is turned OFF:
   • Within 45 seconds after the ignition switch is turned switch is turned OFF
   • The driver side door is closed

Fig 6: Checking Jam Protection Function Of Window

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the door glass goes down by approximately 50 mm (2.0 in.) right when something gets caught between the door frame and door glass during power window operation. However, when the opening amount between the vehicle body and the door glass is less than 200 mm (7.9 in.), the door glass keeps going down until the opening amount reaches 200 mm (7.9 in.) and stops there.

   Operative Condition: 

   • AUTO UP
   • AUTO UP operation after the ignition switch OFF
   • MANUAL UP operation after the ignition switch OFF

1. If the pulse sensor of the power window motor malfunctions, the power window functions will be disabled:
   • The AUTO and the remote functions are disabled.
   • The manual UP/DOWN function can be performed via each power window switch.

Fig 1: Checking Window Lock Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that operation of the door glasses except for the driver side door glass, the back door glass and the sliding roof is disabled when the window lock switch of the power window master switch is pressed.
2. Check that the door glasses, the back door glass and the sliding roof can be operated when the window lock switch is pressed again.

1. Check that the back power window switch can operate the back door glass as follows.

   Standard: 

   Fig 2: Back Power Window Switch Specifications Table (1 Of 3)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the back power window switch can operate the back door glass as follows.

   Standard: 

   Fig 3: Back Power Window Switch Specifications Table (2 Of 3)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the back door glass operates as follows, when the key is inserted into the back door lock key cylinder and the back door is locked/unlocked.

   Standard: 

   Fig 4: Back Power Window Switch Specifications Table (3 Of 3)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the back door glass keeps opening while the back door power window switch on the transmitter is pressed with the rear wiper in the retract position.

1. Under both of the following conditions, check that the door glasses, the back door glass and the sliding roof can be operated even after the ignition switch is turned OFF:
   • Within 45 seconds after the ignition switch is turned OFF
   • The driver side door is closed

1. Check that the door glass goes down by 50 mm (2.0 in.) right when something gets caught between the door flame and door glass during power window operation. However, when the opening amount between the vehicle body and the door glass is less than 200 mm (7.9 in.), the door glass keeps going down until the opening amount reaches 200 mm (7.9 in.) and stops there.

   Operative condition: 

   • AUTO UP via the back door power window switch
   • AUTO/MANUAL UP during power window operation after ignition OFF
   • MANUAL UP via the back door lock key cylinder

1. If the pulse sensor in the back door power window motor malfunctions (DTC B2221 is output), the power window functions will be disabled:
   • The AUTO UP/DOWN function is disabled.
   • The MANUAL DOWN function via the transmitter is disabled.
   • The MANUAL UP/DOWN function via the back door power window switch can be performed (the ignition switch ON).
   • The MANUAL UP/DOWN function via the back door lock key cylinder can be performed (the ignition switch ON).

1. According to the data list displayed by the hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the data list as a first step of troubleshooting is one of the method to shorten the labor time.

Data List Of Back Door ECU: 

1. DTC B1241 is a test code to inform of the back door power window switch, defogger switch and rear wiper switch condition and will be output when the switches are ON. In that these codes are displayed operating the switch or the switch or the codes are not displayed even with operating the switch, there may be trouble in the switch circuit.

1. The active test will indicate if the part is normal or malfunctioning.

Active Test Of Back Door ECU: