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Power Window Control System: Overview Nissan 370Z I

Windows ~1151 words

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Description

When the battery negative terminal is disconnected, the initialization is necessary.

If any of the following operations are performed, the initialization is necessary as well as when the negative battery terminal is disconnected.

  1. Power supply to the power window switch or power window motor is cut off by removal of battery terminal or if the battery fuse is blown.
  2. Disconnection and connection of power window switch harness connector.
  3. Removal and installation of motor from regulator assembly.
  4. Operation of regulator assembly as an independent unit.
  5. Removal and installation of door glass or door glass run.

The following specified operations cannot be performed under the non initialized condition.

  1. Auto-up operation
  2. Anti-pinch function
  3. Key cylinder switch power window function
  4. Automatic window adjusting function
  5. Auto-up, manual-up does not operate when door is open

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

When the control unit is replaced, the initialization is necessary.

If any of the following operations are performed, the initialization is necessary and the control unit must be disconnected.

  1. Power supply to the power window switch or power window motor is cut off by removal of battery terminal or if the battery fuse is blown.
  2. Disconnection and connection of power window switch harness connector.
  3. Removal and installation of motor from regulator assembly.
  4. Operation of regulator assembly as an independent unit.
  5. Removal and installation of door glass or door glass run.

The following specified operations cannot be performed under the non initialized condition.

  1. Auto-up operation
  2. Anti-pinch function
  3. Key cylinder switch power window function
  4. Automatic window adjusting function
  5. Auto-up, manual-up does not operate when door is open

POWER WINDOW AUTO-OPERATION

  1. AUTO UP/DOWN operation can be performed when power window main switch turns to AUTO.
  2. Encoder continues detecting the movement of power window motor and transmits to power window switch as the encoder pulse signal while power window motor is operating.
  3. Power window switch reads the changes of encoder signal and stops AUTO operation when door glass is at the fully open/closed position.
  4. Auto function is inoperable if encoder is malfunctioning.

RETAINED POWER OPERATION

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

RETAINED POWER FUNCTION CANCEL CONDITIONS

  1. Front door CLOSED (door switch OFF) --> OPEN (door switch ON).
  2. When ignition switch turns ON again.
  3. When timer times out. (45 seconds)

Component Description

ComponentFunction
BCMSupplies power to power window switches. Controls retained power function
Power window main switchDirectly controls all power window motors in all doors. Controls anti-pinch operation of power window.
Power window sub-switchControls anti-pinch operation of power window. Controls power window motor of passenger door.
Power window motorIntegrates the encoder and window motor. Starts operating with signals from each power window switch. Transmits power window motor rotation as a pulse signal to power window switch.
Driver side door lock assembly (door key cylinder switch)Transmits operation condition of key cylinder switch to power window main switch.
Remote keyless entry receiverReceives lock/unlock signal from intelligent key, and then transmits to BCM.
Door switchDetects door open/close condition and transmits to BCM.

COMPONENT DESCRIPTION

DRIVER SIDE : Description

Door glass moves UP/DOWN by receiving the signal from power window main switch.

PASSENGER SIDE : Description

Door glass moves UP/DOWN by receiving the signal power window main switch or power window sub-switch.

Detects condition of the driver side power window motor operation and transmits to power window main switch as the pulse signal.

Detects condition of the passenger side power window motor operation and transmits to power window sub-switch as the pulse signal.

POWER WINDOW MAIN SWITCH : Description

Power window main switch, power window sub-switch 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, power window sub-switch.

  1. Keyless power window down signal

The signal mentioned below is transmitted from power window main switch to power window sub-switch.

  1. Front passenger side door window operation signal
  2. Power window control by key cylinder switch signal
  3. Power window lock switch signal
  4. Retained power operation signal

POWER WINDOW SUB-SWITCH : Description

Power window main switch, power window sub-switch 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, power window sub-switch.

  1. Keyless power window down signal

The signal mentioned below is transmitted from power window main switch to power window sub-switch.

  1. Front passenger side door window operation signal
  2. Power window control by key cylinder switch signal
  3. Power window lock switch signal
  4. Retained power operation signal

Description

All power windows do not operate via power window main switch and power window sub-switch.

Driver side power window does not operate using power window main switch.

WHEN POWER WINDOW MAIN SWITCH IS OPERATED : Description

Passenger side power window operates using power window sub-switch but does not operate using power window main switch.

WHEN POWER WINDOW SUB-SWITCH IS OPERATED : Description

Passenger side power window operates using power window main switch but not using power window sub-switch.

WITH BOTH POWER WINDOW MAIN SWITCH AND POWER WINDOW SUB-SWITCH : Description

Passenger side power window operates using power window main switch and power window sub-switch.

Anti-pinch function does not operate when power window up operated.

Anit-pinch function does not operate when power window up operated.

Retained power function does not operate after ignition switch turns OFF.

Power window does not operate when locking or unlocking a door using door key cylinder.

Power window down does not operate when pressing unlock button on Intelligent Key.

Initial setting is necessary when battery terminal is removed.

CAUTIONThe following specified operations are not performed under the non-initialized condition. Auto-up operation Anti-pinch function Automatic window adjusting function Key cylinder switch power window function Power window UP operation while door is open

Initial setting is necessary when replacing power window main switch.

CAUTIONThe following specified operations are not performed under the non-initialized condition. Auto-up operation Anti-pinch function Automatic window adjusting function Key cylinder switch power window function Power window UP operation while door is open
  1. AUTO UP/DOWN operation can be performed when power window switch turns to AUTO.
  2. Encoder continues detecting the movement of power window motor and transmits to power window switch as the encoder pulse signal while power window motor is operating.
  3. Power window switch reads the changes of encoder signal and stops AUTO operation when door glass is at the fully open/closed position.
  4. Auto function is inoperable if encoder is malfunctioning.

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

RETAINED POWER FUNCTION CANCEL CONDITIONS

  1. Front door CLOSED (door switch OFF) --> OPEN (door switch ON).
  2. When ignition switch turns ON again.
  3. When timer times out. (45 seconds)
ComponentFunction
BCMSupplies power to power window switches. Controls retained power function
Power window main switchDirectly controls all power window motors in all doors. Controls anti-pinch operation of power window.
Power window sub-switchControls anti-pinch operation of power window. Controls power window motor of passenger door.
Driver side power window motorIntegrates the encoder and window motor. Starts operating with signals from power window main switch. Transmits power window motor rotation as a pulse signal to power window switch.
Passenger side power window motorIntegrates the encoder and window motor. Starts operating with signals from power window main switch & power window sub-switch. Transmits power window motor rotation as a pulse signal to power window switch.
Driver side door lock assembly (door key cylinder switch)Transmits operation condition of key cylinder switch to power window main switch.
Remote keyless entry receiverReceives lock/unlock signal from intelligent key and then transmits to BCM.
Door switchDetects door open/close condition and transmits to BCM. Door switch signal is directly received by power window switch and is used for the automatic window adjusting function.
Soft top control unitControls power window when opening/closing soft top.
Door key cylinder switchPower window main switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signals.

COMPONENT DESCRIPTION

Door glass moves UP/DOWN by receiving the signal from power window main switch.

Door glass moves UP/DOWN by receiving the signal power window main switch or power window sub-switch.

Detects condition of the driver side power window motor operation and transmits to power window main switch as the pulse signal.

Detects condition of the passenger side power window motor operation and transmits to power window sub-switch as the pulse signal.

Detects door open/closed condition.

Detects door open/closed condition.

All power windows do not operate via power window main switch and power window sub-switch.

Driver side power window does not operate using power window main switch.

Passenger side power window operates using power window main switch and power window sub-switch.

Anti-pinch function does not operate when power window up operated.

Anit-pinch function does not operate when power window up operated.

Retained power function does not operate after ignition switch turns OFF.

Power window does not operate when locking or unlocking a door using door key cylinder.

Power window down does not operate when pressing unlock button on Intelligent Key.

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