POWER WINDOW SYSTEM

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Outline

•  A power window system that enables automatic opening/closing of the door glass has been adopted.
•  The driver's side door glass can be opened/closed automatically or manually by operating the power window main switch.
•  All the door glass can be opened/closed automatically or manually by operating the power window main switch and the power window sub switches.

Structural view

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System Wiring Diagram

Power window main switch

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Power window subswitch

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Function

•  Manual open/close function
―  When the power window main switch or power window subswitches is operated using the manual operation, the door glass opens/closes manually.
•  Auto open/close function
―  When the power window main switch or power window subswitches is operated using the auto operation, the door glass opens/closes automatically.
•  Power window system initial setting function
―  Records the position of the door glass.
•  Auto reverse pinch protection function
―  If an obstruction by a foreign object is detected during the auto close operation, the operation changes from close to open.
•  IG OFF timer function
―  The power window can be operated using the power window main switch or power window subswitches for approx. 40 s after the ignition is switched from ON (engine on or off) to ACC or OFF.
•  IG OFF timer cancel function
―  The IG OFF timer is canceled when approx. 40 s or more have elapsed since the ignition was switched to ACC or OFF or any door is opened during IG OFF timer operation.
•  Exterior open function
―  The power windows can be opened by long-pressing the remote transmitter unlock button from outside of the vehicle.
•  Exterior close function
―  The power windows can be closed by long-pressing the driver’s door request switch or the remote transmitter lock button from outside of the vehicle.

Construction

•  A P/W CM is integrated in the power window main switch.
•  The P/W CM controls the power window system based on the pulse signals from the power window motor.
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Operation


Driver's side manual open/close operation (Example: close operation)

1.  When the power window main switch is operated for manual close operation, the P/W CM receives a manual close signal. (1)

2.  When the P/W CM receives a manual close signal, it turns on the close relay. (2)

3.  When the close relay is turned on, the power window motor (driver's side) starts manual close operation.(3)

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Driver's side auto open/close operation (Example: close operation)

1.  When the power window main switch is operated for auto close operation, the P/W CM receives an auto close signal. (1)

2.  When the P/W CM receives an auto close signal, it turns on the close relay. (2)

3.  When the close relay is turned on, the power window motor (driver's side) starts auto close operation.(3)

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Passenger's side and rear side manual open/close operation (Example: Passenger's side close operation)

1.  When the power window subswitch is operated for manual close operation, the power window motor (passenger's side) starts manual close operation.(2)

2.  When the P/W CM receives a manual close signal, it turns on the close relay. (2)

3.  When the close relay is turned on, the power window motor (passenger's side) starts manual close operation.(3)

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Power Window System Initial Setting

1.  The P/W CM records the door glass position when the switch is pulled and held approx. 2 s after the door glass is fully closed from the fully opened position with the ignition is switched ON (engine off or on).

•  Performing the following procedures will reset the initial setting and disables auto operation. Re-perform the initial setting.
―  Negative battery cable is disconnected
―  Power window main switch connector is disconnected
―  Power window system power supply fuse is removed


Auto Reverse Pinch Protection

1.  When the P/W CM detects a change in the pulse signal from the power window motor for 0.3 s or more during the auto close operation, it reverses the power window motor and the door glass opens approx. 200 mm {7.87 in} automatically.


IG OFF Timer (Example: Driver's side manual close operation)

1.  When the ignition is switched from ON (engine off or on) to ACC or OFF, the IG OFF timer function of the P/W CM is turned on and the power window main switch can be operated for approx. 40 s after IG OFF is detected.

2.  When the power window main switch is operated for manual close operation while the IG OFF timer is on, the P/W CM receives a manual close signal.(1)

3.  When the P/W CM receives a manual close signal, it turns on the close relay. (2)

4.  When the close relay is turned on, the power window motor (driver's side) starts manual close operation.(3)

5.  The P/W CM turns off the IG OFF timer function when approx. 40 s has elapsed since IG OFF is detected.

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IG OFF Timer Cancel

1.  The P/W CM detects the open/close conditions of all the doors based on the door open/close signal sent from the rear body control module (RBCM).

2.  When a door open signal is sent from the rear body control module (RBCM) while the IG OFF timer is on, the IG OFF timer function is canceled.

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Exterior open function

Note
•  When all of the following conditions are met, the exterior open function operates.
―  Ignition is switched off
―  All doors and liftgate are closed
―  Remote transmitter is within reception area outside of vehicle.
Exterior open operation using remote transmitter unlock button
1.  A remote transmitter unlock button long-press signal is sent when the remote transmitter unlock button is long-pressed for approx. 2.5 s.
2.  When the keyless receiver receives the remote transmitter unlock button long-press signal, it transmits it to the start stop unit.
3.  When the start stop unit receives the remote transmitter unlock button long-press signal, it sends a power window open initiation signal to the rear body control module (RBCM).
4.  When the rear body control module (RBCM) receives the power window open initiation signal, it sends a power window open request signal to the power window main switch.
5.  When the power window main switch receives the power window open request signal, it operates the power window motor to open the door glass.
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Exterior close function

Note
•  When all of the following conditions are met, the exterior close function operates.
―  Ignition is switched off
―  All doors and liftgate are closed
―  Remote transmitter is within reception area outside of vehicle.
Exterior close operation using remote transmitter lock button
1.  A remote transmitter lock button long-press signal is sent when the remote transmitter lock button is long-pressed for approx. 1.5 s.
2.  When the keyless receiver receives the remote transmitter lock button long-press signal, it transmits it to the start stop unit.
3.  When the start stop unit receives the remote transmitter lock button long-press signal, it sends a power window close initiation signal to the rear body control module (RBCM).
4.  When the rear body control module (RBCM) receives the power window close initiation signal, it sends a power window close request signal to the power window main switch.
5.  When the power window main switch receives the power window close request signal, it operates the power window motor to close the door glass.
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Exterior close operation using driver's door request switch
1.  When the driver's door request switch is long-pressed for approx. 1.5 s, the request switch long-press signal is input to the start stop unit via the LF control unit.
2.  Based on the request switch long-press signal, the start stop unit sends a request output signal to the LF control module to verify that the remote transmitter is inside the reception area.
3.  The LF control module sends a request signal from the keyless antenna of the door in which the request switch was long-pressed and all keyless antennas for the vehicle interior.
4.  The remote transmitter receives the request signal from the outside antenna, and sends ID data to the keyless receiver.
5.  The keyless receiver transmits the received ID data to the start stop unit.
6.  The start stop unit verifies the ID data and transmits a power window close initiation signal to the rear body control module (RBCM) if it determines a programmed advanced key is outside the vehicle.
7.  When the rear body control module (RBCM) receives the power window close initiation signal, it sends a power window close request signal to the power window main switch.
8.  When the power window main switch receives the power window close request signal, it operates the power window motor to close the door glass.
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Fail-safe

•  When the P/W CM detects an error in the pulse signal (Hall effect switch), it switches the power window system to fail-safe mode to prevent incorrect operation.

Malfunction condition

Ignition is switched ON (engine on or off)

Ignition switched OFF

Recovery condition
P/W CM detected pulse 1 error (for pinching and door glass position detection) stop malfunction
•  Pulse 2 detected but pulse 1 is not detected during close or open operation
Auto operation is prohibited (Manual operation is enabled) Operation of power window main switch except for the driver's seat is prohibited
Auto and manual operations are prohibited
From a close operation, the power window system returns to normal mode when pulse 1 and 2 signals are received normally, and when the window fully-closed position and the window glass lowering amount during auto reverse are detected
P/W CM detected pulse 2 error (for door glass direction detection) stop malfunction
•  Pulse 1 detected but pulse 2 is not detected during close or open operation
P/W CM detected pulse signal error (inversion of pulse 1 and pulse 2 input signals or large phase deviation between pulses 1 and 2)
•  Difference detected between the direction detected by the signals of pulses 1 and 2, and the actual direction during close or open operation
P/W CM detected pulse 1 error (Non-return range lowering malfunction)
•  During close operation, a pulse 1 signal from the power window motor is detected more than the number of set times even after the window reaches the fully-closed position recorded by the power window main switch.
P/W CM detected pulse 1 and 2 stop malfunction
•  Pulse signals 1 and 2 are not detected for 1 s after the open operation is started from the fully closed position