System Description

SYSTEM DIAGRAM

Courtesy of NISSAN NORTH AMERICA, INC.

POWER WINDOW OPERATION

Power window system is activated by power window switch operation when ignition switch turns ON, or during the retained power operation after ignition switch turns OFF.
Power window main switch can open/close door glass.
Front and rear power window switch can open/close the corresponding door glass.
Power window lock switch can lock all power windows other than driver seat.
All power windows close when pressing Intelligent Key lock button for 3 seconds.
If door glass receives resistance that is the specified value or more while power window of each seat is in AUTO-UP operation, power window operates in the reverse direction.
Power window serial link transmits the signals from power window main switch to each power window switch.
AUTO-UP/DOWN operation can be performed when front power window switch turns to AUTO.

POWER WINDOW AUTO-OPERATION

AUTO-UP/DOWN operation can be performed when each power window motor turns to AUTO.
Encoder continues detecting the movement of power window motor and output the encoder pulse signal to power window switch while power window motor is operating.
Power window switch reads the changes of encoder signal and stops AUTO operation when door glass is at fully opened/closed position.
Power window motor is operable in case encoder is malfunctioning.
AUTO function does not operate if encoder is malfunctioning.

POWER WINDOW SERIAL LINK

Power window main switch, front power window switch (passenger side), rear power window switch LH/RH and BCM transmit and receive the signal by power window serial link.

The signal mentioned below is transmitted from BCM to power window main switch, front power window switch (passenger side) and rear power window switch LH/RH.

Keyless power window down signal
Door switch signal

The signal mentioned below is transmitted from power window main switch to front power window switch (passenger side) and rear power window switch LH/RH.

Front passenger side door window and rear door window operation signal
Power window control by door key cylinder switch signal
Power window lock switch signal
Retained power operation signal

RETAINED POWER OPERATION

Retained power operation is an additional power supply function that enables power window system to operate during the 45 seconds even when ignition switch is turned OFF.

Retained Power Function Cancel Conditions

Front door CLOSE (door switch OFF)→OPEN (door switch ON).
When ignition switch is ON again.
When timer time passes. (45 seconds)

POWER WINDOW LOCK FUNCTION

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

ANTI-PINCH OPERATION

Anti-pinch foreign lowers door glass 150 mm (5.9 in) when foreign material is pinched in door glass during AUTO-UP operation.
Encoder continues detecting the movement of power window motor and output the encoder pulse signal to power window switch while power window motor is operating.
Resistance is applied to the power window motor rotation that changes the frequency of encoder pulse signal if foreign material is trapped in the door glass.
Power window switch controls to lower the door glass for 150 mm (5.9 in) after it detects encoder pulse signal frequency change.

Operation Condition

When all 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.

DOOR KEY CYLINDER SWITCH OPERATION

Hold the door key cylinder to the LOCK or UNLOCK direction for 1.5 seconds or more to OPEN or CLOSE all power windows when ignition switch is OFF. In addition, it stops when key position is moved to NEUTRAL when operating.

Operation Condition

Ignition switch OFF.
Hold door key cylinder to LOCK position for 1.5 seconds or more to perform CLOSE operation of the door glass.
Hold door key cylinder to UNLOCK position for 1.5 seconds or more to perform OPEN operation of the door glass.

KEYLESS POWER WINDOW DOWN FUNCTION

All power windows open when the unlock button on Intelligent Key is activated and kept pressed for more than 3 seconds with the ignition switch OFF. The windows keep opening if the unlock button is continuously pressed.

The power window opening stops when the following operations are performed.

When the unlock button is kept pressed more than 15 seconds.
When the ignition switch is turned ON while the power window opening is operated.
When the unlock button is released.

While retained power operation activate, keyless power window down function cannot be operated.

Keyless power window down operation function can be changed by "PW DOWN SET" in "WORK SUPPORT" mode of "INTELLIGENT KEY" of "BCM" using CONSULT. Refer to Diagnosis Description .