Power Window Control System - Diagnostics: Pre-Check

CHECK WINDOW LOCK SWITCH
1. Check that operation of the door glasses except the driver side door glass and the roof glass is disabled when the window lock switch of the power window master switch is pressed.
2. Check that the door glasses and the roof glass can be operated when the window lock switch is pressed again.
  
  Fig 1: Identifying Window Lock Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK MANUAL UP/DOWN FUNCTION
1. Check that the driver side power window operates as follows.
  Standard:
  
  Fig 2: Driver Side Power Window Operation Table (Manual Up/Down Function)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the power windows except the driver side power window operate as follows.
  Standard:
  
  Fig 3: Power Window Operation Table (Except Driver Side Power Window) (Manual Up/Down Function)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK AUTO UP/DOWN FUNCTION
1. Check that the driver side power window operates as follows.
  Standard:
  
  Fig 4: Driver Side Power Window Operation Table (Auto Up/Down Function)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the power windows except the driver side power window operate as follows.
  Standard:
  
  Fig 5: Driver Side Power Window Operation Table (Auto Up/Down Function) Except Driver Side Power Window
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK REMOTE MANUAL UP/DOWN FUNCTION
1. Check that the power windows except the driver side power window operate as follows.
  Standard:
  
  Fig 6: Power Window Remote Manual Up/Down Function Operation Table (Except Driver's Side Power Window)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK REMOTE AUTO UP/DOWN FUNCTION
1. Check that the power windows except the driver side power window operate as follows.
  Standard:
  
  Fig 7: Power Window Remote Auto Up/Down Function Operation Table (Except Driver Side Power Window)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK MANUAL UP/DOWN FUNCTION VIA DRIVER SIDE DOOR LOCK KEY CYLINDER
1. Check that all door glasses and sliding roof operate as follows, when the key is inserted into the key cylinder.
  Standard:
  
  Fig 8: Door Glasses & Sliding Roof Manual Up/Down Function Via Driver Side Door Lock Key Cylinder Operation Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK MANUAL DOWN FUNCTION VIA TRANSMITTER
1. Check that all door glasses and sliding roof operate as follows, when operating the transmitter.
  Standard:
  
  Fig 9: Door Glasses And Sliding Roof Manual Down Function Via Transmitter Operation Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION OFF
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:
  1. Within 45 seconds after the ignition switch is turned OFF.
  2. All the doors are closed.
CHECK JAM PROTECTION
HINT:

The jam protection function prevents any part of your body from getting caught by accident between the door frame and the door glass during power window operation.
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 the door glass during power window operation. However, when the opening between the door frame and the door glass is less than 200 mm (7.9 in.), the door glass keeps going down until the opening reaches 200 mm (7.9 in.) and stops there.
  
  Fig 10: Checking Jam Protection
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Operative condition:
  - AUTO UP
  - AUTO UP function after the ignition switch is turned OFF
  - MANUAL UP function after the ignition switch is turned OFF
  - MANUAL UP function via the driver side door lock key cylinder
CHECK POWER WINDOW FAIL-SAFE FUNCTION
HINT:

If there is a malfunction in the power window system, some of the power window functions will be disabled.

Driver side power window:

Fig 11: Driver Side Power Window Fail-Safe Function Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Power windows except driver side power window:

Fig 12: Power Windows Except Driver Side Power Window Fail-Safe Function Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK SWITCH CONDITION WITH HAND-HELD TESTER
HINT:

DTC B1221 is output when switches of the power window master switch are on. When these switches are off, DTC B1221 is not output. Using this DTC, you can check whether these switches are normal or not.

CHECK DATA LIST WITH HAND-HELD TESTER

HINT:

According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor, actuator, etc. without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten labor time.

DATA LIST in D-DOOR ECU:

DATA LIST in D-DOOR ECU

Measurement Item	Label	Parameter
Driver switch on master switch	P/W AUTO SW	ON/OFF
Passenger switch on master switch	P P/W AUTO SW	ON/OFF
Rear RH switch on master switch	RR P/W AUTO SW	ON/OFF
Rear LH switch on master switch	RL P/W AUTO SW	ON OFF
Door glass position (Fully closed - 1/4 open)	GLASS POS-1/4	CAUTION/OK*
Door glass position (1/4 open - 2/4 open)	GLASS POS-2/4	CAUTION/OK*
Door glass position (2/4 open - 3/4 open)	GLASS POS-3/4	CAUTION/OK*
Door glass position (3/4 open - Fully opened)	GLASS POS-OPEN	CAUTION/OK*

HINT:

*CAUTION is displayed even when no resistance is applied in each position. In this case there must be something caught somewhere in that position.

CHECK ACTIVE TEST WITH HAND-HELD TESTER

HINT:

Performing the ACTIVE TEST using the hand-held tester allows you to operate the relay, VSV, actuator, etc. without parts removal. Performing the ACTIVE TEST as the first step of trouble shooting is one way to shorten labor time. It is possible to display the DATA LIST during the ACTIVE TEST.

ACTIVE TEST in D-DOOR ECU:

ACTIVE TEST in D-DOOR ECU

Operation Item	Label	Operation
Driver side power window UP/DOWNP	P/W UP/DOWN	UP/DOWN

ACTIVE TEST in BODY ECU:

ACTIVE TEST in BODY ECU

Operation	Item Label	Operation
Passenger side power window U P/DOWN	P P/W UP/DOWN	U P/DOWN
Rear LH power window U P/DOWN	RL P/W UP/DOWN	UP/DOWN
Rear RH power window UP/DOWNRR	RR P/W UP/DOWN	UP/DOWN