System Description

SYSTEM DIAGRAM

Component parts	Function
Front door switch	Detects front door open/close condition and transmits door switch signal to BCM.
BCM	Controls power window relay. Controls retained power function.
Power window main switch	Refer to Power Window Main Switch.
Front power window switch (passenger side)	Refer to Front Power Window Switch (Passenger side).
Rear power window switch	Refer to Rear Power Window Switch.
Front power window motor (driver side)	Refer to Front Power Window Motor (Driver Side).
Front power window motor (passenger side)	Refer to Front Power Window Motor (Passenger Side).
Rear power window motor (LH & RH)	Refer to Rear Power Window Motor.
Power window relay	Refer to Power Window RelayPower Window Relay.

POWER WINDOW OPERATION

BCM controls the power window relay and controls the electric motor switch ON power source supplied to each power window switch.
Power window system is activated by power window switch when electric motor switch turns ON or retained power is operating.
Power window main switch opens/closes all door glass.
Front and rear power window switch opens/closes the corresponding door glass.

POWER WINDOW AUTO-OPERATION

AUTO UP/DOWN operation can be performed when power window main switch turns to AUTO.
Power window main switch transmits AUTO UP/DOWN signal to power window motor and operating the front power window motor (driver side) turns to AUTO.
Power window motor reads the changes of operating condition and stops AUTO operation when door glass is at fully opened/closed position.

RETAINED POWER FUNCTION

Retained power function is an additional power supply function that enables power window system to operate for 45 seconds after electric motor switch turns OFF.

RETAINED POWER FUNCTION CANCEL CONDITIONS

Any of the following condition is satisfied.

Front door CLOSE → OPEN.
When electric motor switch turns ON again.
When timer times out. (45 seconds)

LIN COMMUNICATION

Front power window motor (driver side), front power window motor (passenger side), rear power window motor (L/R side), power window main switch and BCM transmit and receive signal by LIN communication.

POWER WINDOW LOCK

Ground circuit inside power window main switch shuts off when power window lock switch is ON. This inhibits rear power window switch operation.

ANTI-PINCH SYSTEM (FRONT DRIVER SIDE)

Pinch foreign material in the door glass during AUTO-UP operation, and it is the anti-pinch function that lowers the door glass when detected.
CPU continues detecting the movement of power window motor while power window motor is operating.
Power window motor controls to lower the door glass for approximately 150 mm (5.91 in) or more after it detects foreign material is trapped in the door glass.

OPERATION CONDITION

When door glass AUTO-UP operation is performed (anti-pinch function does not operate just before the door glass closes and is fully closed)

note	Depending on environment and driving conditions, if a similar impact or load is applied to the door glass, it may lower.