Power Window Control System (For Models With Jam Protection Function On 4 Windows) - System Description

Brand:

Toyota

Model Name:

Camry ACV40 GSV40

Manual:

Repair Manual

Section:

Windshield - Windowglass

Title:

Power Window Control System (For Models With Jam Protection Function On 4 Windows)

  1. Power window control system description

  2. Function of main components

  3. System function



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POWER WINDOW CONTROL SYSTEM DESCRIPTION

  1. The power window control system controls the power window operation using the power window regulator motors. The main controls of this system are the power window regulator master switch assembly, which is mounted on the driver side door, and the power window regulator switches, which are mounted on the front passenger side door and rear doors. Operating a window switch results in electrical power being transmitted to the corresponding power window regulator motor.


FUNCTION OF MAIN COMPONENTS
The power window control system consists of the following components:

Component
Outline
Power Window Regulator Master Switch Assembly
  1. Controls power window operation for all seats.
  2. When lock switch is set to lock position, window operation will be possible only for driver side power window.
Power Window Regulator Switch Assembly
  1. Front Passenger Side
  2. Rear LH Side
  3. Rear RH Side
  1. Located on front passenger side door and rear doors.
  2. Each switch controls window operation for its respective window.
Power Window Regulator Motor Assembly
  1. Receives switch signals and changes signals into motor activation. As a result, window position changes.
  2. Uses Hall-IC in regulator motor with ECU to detect window position and jamming.

SYSTEM FUNCTION
The power window control system has the following functions:
*: w/ Entry and Start System

Function
Outline
Manual up-and-down function
Function that causes the window to go up while the power window switch is being pulled halfway up and to go down while pushed halfway down. The window stops as soon as the switch is released.
All door auto up-and-down function
Function that enables windows of all doors to be fully opened or closed by one full pull or push of the power window regulator master switch assembly or the power window regulator switch assembly.
Window lock function
  1. Function that disables power window regulator switch assembly (for Front passenger side, rear LH side and rear RH side) operations when the window lock switch is pressed.
  2. The power window regulator switch assemblies (for Front passenger side, rear LH side and rear RH side) can be operated when the window lock switch is pressed again.
Jam protection function
Function that automatically stops the power window and moves it downward if a foreign object gets jammed in the door window during auto up and manual up operation.
Remote control function
Function that allows the power window regulator master switch assembly to control manual and auto up-and-down operations of the front passenger door window and rear door windows.
Key-off operation function
  1. Function that makes it possible to operate all power windows for approximately 45 sec. after the ignition switch is turned off when the driver side door or front passenger side door has not been opened.
  2. When 45 sec. have elapsed, or the driver door or front passenger door is opened after the ignition switch is turned off, the key-off operation function will be disabled.
HINT:
  1. If the window lock switch is off, the windows can be operated using any of the power window regulator switch assemblies. If the window lock switch is on, only the power window regulator master switch assembly can be used to operate the windows (remote operation remains possible).
  2. Even if the driver door or front passenger door is opened during automatic window operation while the key-off operation function is on, the window will continue operating.
Key-linked open and close
  1. When the key is not inside vehicle, the driver side door is locked, and the key inserted into the driver side door key cylinder is turned and maintained in the lock position for 1.5 seconds or more, the main body ECU (instrument panel J/B) sends operation permission signal to the power window ECU in the power window regulator motor assembly that receives signal controls the power window regulator motor to close all power windows.
  2. Similarly, when the driver door is unlocked, turning and maintaining the driver side door key in the unlock position for 1.5 seconds or more will cause all power windows to open.
Wireless transmitter-linked open and close
  1. When the certification ECU (smart key ECU assembly) receives UNLOCK signal from the electrical key transmitter for 3 seconds or more, the main body ECU (instrument panel J/B) sends operation permission signal to the power window ECU in the power window regulator motor assembly that receives signal controls the power window regulator motor to open all power windows.
  2. When the certification ECU (smart key ECU assembly) receives LOCK signal from the electrical key transmitter for 3 seconds or more, the main body ECU (instrument panel J/B) sends operation permission signal to the power window ECU in the power window regulator motor assembly that receives signal controls the power window regulator motor to close all power windows.
Entry lock switch-linked close*
When the certification ECU (smart key ECU assembly) receives LOCK signal from the entry lock switch on the front door outside handle assembly for 3 seconds or more, the main body ECU (instrument panel J/B) sends operation permission signal to the power window ECU in the power window regulator motor assembly that receives signal controls the power window regulator motor to close all power windows.
Diagnosis
Function that allows diagnosis of the power window control system if any of the power window ECUs (built into each power window regulator motor assembly) detect a malfunction in the system. If a malfunction is detected, the power window ECU will illuminate the LEDs on the power window regulator master switch assembly and the respective power window regulator switch assembly to inform the driver and passenger of the malfunction.
Fail-safe
A fail-safe function to disable a part of power window functions if the pulse sensor in the power window motor has a malfunction.
Auto up-and-down function and remote control function are disabled.