Power Window System Description

A power window motor with built-in ECU is provided on the driver side door of XLE grade models. The ECU effects power window control.

The power window system has the following functions:

Function

Outline

Grade

XLE

LE

SE

Manual up-and-down (All Doors)

This function causes the driver door window to open or close while the power window switch is being pulled halfway up or pushed halfway down. Windows other than the driver door window can be opened or closed by fully pulling up or fully pushing down the switch. The window stops as soon as the switch is released.

One-touch auto up-and-down (Driver Door)

The one-touch auto up-and-down function enables the window to be fully opened or closed with a single touch of the power window switch.

One-touch auto down (Driver Door)

The one-touch auto down function enables the window to be fully opened with a single touch of the power window switch.

Jam Protection (Driver Door)

A jam protection function automatically stops the power window and moves it downward if a foreign object gets jammed in the window during one-touch auto-up operation.

Remote Control (All Doors)

The power window master switch can control the up-and-down operations of the windows.

Window Lock

Power window operation of the 3 passenger windows is disabled when the window lock switch is pressed.

Key Off Operation (Driver Door)

This function makes it possible to operate the power windows for approximately 43 seconds after the power source is turned to OFF, if the driver's door is not opened.

Diagnosis

When the power window ECU detects the following conditions, the self-diagnosis function switches the ECU to failsafe mode. The power window switch illumination (LED) flashes to inform the user.

An abnormality in the Hall IC that detects the position, speed and direction of the window.

An error in the window detection position and the upper limit position recorded in the power window ECU.

Fail-Safe

If the Hall IC in the power window ECU malfunctions, some power window functions will be prohibited by the failsafe mode:

Power windows can be operated using the power window switches within 40 seconds of failsafe mode being entered. Each power window operates when the corresponding power window switch is fully pushed down or pulled up and held in that position.

The power window motor assembly stores the initial position of each door window. The memory is not cleared if battery terminals, fuses or power window motor connectors are disconnected. However, after the power window motor assembly and power window regulator assembly are replaced, the stored initial position data must be cleared and the initialization of the power window motor assembly must be performed. When necessary, perform the initialization as follows: Initial Position Memory Erasure Procedure

Turn the power supply off (for example, remove a power window motor connector or fuse) while the power window motor is operating.

Check that the power window switch illumination blinks after the power source is turned on. Initialization procedure

Pull up the power window switch to the AUTO UP position and hold it until the window is fully closed.

Hold the power window switch in the AUTO UP position for at least 1 second after the window is fully closed.

Make sure that the window opens and closes automatically using the one touch function. For details, see the 2007 Camry Repair Manual (RM0250U).

^ System Diagram i

Power Window Motor Assembly (Driver)

Power Window Motor Assembly (Driver)

LED Illumination Control Signal

Local

Communication

LED Illumination Control Signal

Power Window Operation Request Signal

Main Body ECU

J

i

i

i

Courtesy Switches

Key Switch

Power Window Master Switch

Motor Drive

Power Window Motor M

Motor Drive

Request Power Window Motor Signal

Request Power Window Motor Signal

Motor Drive

Request Power Window Motor

Signal

Motor Drive

Request Power Window Motor

Signal

Motor Drive

Request

Signal

Motor Drive

Request

Signal

XLE Grade

025BE75P

Power Window Motor (Driver)

Power Window Operation Request Signal

Main Body ECU

i

k

i

i

Courtesy

Key

Switches

Switch

Power Window Motor (Driver)

Power Window Motor

Motor Drive

Request Power Window Motor Signal M

Motor Drive

Request Power Window Motor Signal M

Motor Drive

Request Power Window Motor Signal

Motor Drive

Request Power Window Motor Signal

Motor Drive Request Signal

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