Operation CHARM: Car repair manuals for everyone.
Home >> Infiniti >> 2009 >> M35x AWD V6-3.5L (VQ35HR) >> Repair and Diagnosis >> Windows and Glass >> Windows >> Description and Operation >> System Description

System Description





POWER WINDOW SYSTEM


System Description

Power is supplied at all time
- through 50A fusible link (letter F, located in the fuse and fusible link box)
- to BCM terminal 55, and
- through BCM terminal 54
- to power window main switch terminal 19
- to power window sub-switch (front passenger side) terminal 10
- to power window sub-switch (rear LH and RH) terminal 10.
- through 10A fuse [No. 21, located in the fuse block (J/B)]
- to BCM terminal 42.
With ignition switch in ON or START position, Power is supplied
- through 15A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38, and
- through BCM terminal 53
- to power window main switch terminal 10
Ground supplied
- to BCM terminal 52
- through body grounds M16 and M70.
- to power window main switch terminal 17
- through body grounds M16 and M70.
- to power window sub-switch (front passenger side) terminal 11
- through body grounds M16 and M70.
- to power window sub-switch (rear LH and RH) terminal 11
- through body grounds B5, B40 and B131.

MANUAL OPERATION

Front Driver Side Door
WINDOW UP
When the front LH switch in the power window main switch is pressed in the up position, Power is supplied
- through power window main switch terminal 8
- to power window motor (front driver side) terminal 2.
Ground is supplied
- to power window motor (front driver side) terminal 1
- through power window main switch terminal 11.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the front LH switch in the power window main switch is pressed in the down position
Power is supplied
- through power window main switch terminal 11
- to power window motor (front driver side) terminal 1.
Ground is supplied
- to power window motor (front driver side) terminal 2
- through power window main switch terminal 8.
Then, the motor lowers the window until the switch is released.

Front Passenger Side Door
POWER WINDOW SUB-SWITCH (FRONT PASSENGER SIDE) OPERATION
WINDOW UP
When the power window sub-switch (front passenger side) is pressed in the up position
Power is supplied
- through power window sub-switch (front passenger side) terminal 8
- to power window motor (front passenger side) terminal 2.
Ground is supplied
- to power window motor (front passenger side) terminal 1
- through power window sub-switch (front passenger side) terminal 9.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the power window sub-switch (front passenger side) is pressed in the down position
Power is supplied
- through power window sub-switch (front passenger side) terminal 9
- to power window motor (front passenger side) terminal 1.
Ground is supplied
- to power window motor (front passenger side) terminal 2
- through power window sub-switch (front passenger side) terminal 8.
Then, the motor lowers the window until the switch is released.
POWER WINDOW MAIN SWITCH OPERATION
Signal is sent
- though power window main switch terminal 14.
- to power window sub-switch (front passenger side) terminal 16
The operation of power window after receive the signal is as same as operate the power window with power window sub-switch (front passenger side).

Rear Door (LH or RH)
POWER WINDOW SUB-SWITCH (REAR LH OR RH) OPERATION
WINDOW UP
When the power window sub-switch (rear LH or RH) is pressed in the up position
Power is supplied
- through power window sub-switch (rear LH or RH) terminal 8
- to power window motor (rear LH or RH) terminal 1.
Ground is supplied
- to power window motor (rear LH or RH) terminal 2
- through power window sub-switch (rear LH or RH) terminal 9.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the power window sub-switch (rear LH or RH) is pressed in the down position
Power is supplied
- through power window sub-switch (rear LH or RH) terminal 9
- to power window motor (rear LH or RH) terminal 2.
Ground is supplied
- to power window motor (rear LH or RH) terminal 1
- through power window sub-switch (rear LH or RH) terminal 8.
Then, the motor lowers the window until the switch is released.
POWER WINDOW MAIN SWITCH OPERATION
Signal is sent
- though power window main switch terminal 14.
- to power window sub-switch (rear LH or RH) terminal 16
The operation of power window after receive the signal is as same as operate the power window sub-switch
(rear LH or RH).

AUTO OPERATION
The power window AUTO feature enables the driver to open or close the window without holding the window switch in the down or up position.

POWER WINDOW SERIAL LINK
Power window main switch, any power window sub-switches and BCM transmit and receive the signal by power window serial link.
The under mentioned signal is transmitted from BCM to power window main switch and power window subswitches.
- Keyless power window down signal.
The under mentioned signal is transmitted from power window main switch to power window sub-switch (front passenger side)
- Front passenger side door window operation signal.
- Power window control by key cylinder switch signal.
- Power window lock signal.
- Retained power operation signal.
The under mentioned signal is transmitted from power window main switch to power window sub-switch (rear
LH or RH)
- Rear LH or RH side door window operation signal.
- Power window control by key cylinder switch signal.
- Power window lock signal.
- Retained power operation signal.

POWER WINDOW LOCK
The power window lock is designed to lock operation of all windows except for driver side door window.
When the lock position, the power window lock signal is transmitted to any power window sub-switches by power window serial link. This prevents the power window motors from operating.

RETAINED POWER OPERATION
When the ignition switch is turned to the OFF position from ON or START position.
Power is supplied for 45 seconds
- through BCM terminal 53
- to power window main switch terminal 10.
When power and ground are supplied, the BCM continues to be energized, and the power window can be operated.
The retained power operation is canceled when the driver or passenger side door is opened.
RAP signal period can be changed by CONSULT-III. Refer to Scan Tool Testing and Procedures.

ANTI-PINCH SYSTEM
Power window main switch and each power window sub-switch recognizes and controls the door glass condition by reading encoder signals 1 and 2.





If a door glass is subject to a certain resistance due to a foreign material obstruction during the following close operation.
- automatic close operation when ignition switch is in the "ON" position
- automatic close operation during retained power operation
- Key cylinder switch close operation during retained power operation
The power window switch reads encoder signal 1, It stops UP operation of the motor, and sends a signal for down operation to lower the window by a certain amount (150mm, 5.91 in)

INITIALIZATION
Perform the initialization when the following operations are performed or when the auto up operation is not performed. Refer to Disassembly and Assembly Inspection after Installation (Front door), Disassembly and Assembly Inspection after Installation(Rear door).
- When the power supply to the power window main switch, power window sub-switch or each power window motor is cut off by the removal of battery terminal or the battery fuse is blown.
- Disconnection and connection of power window main switch or each power window sub-switch harness connector.
- Removal and installation of regulator assembly.
- Removal and installation of motor from regulator assembly.
- Operation of regulator assembly as an independent unit.
- Removal and installation of glass.
- Removal and installation of door glass run.

CAUTION:
The following operations are not performed under the condition that the initialization is not performed yet.
- Auto up operation
- Anti-pinch function
- Key cylinder switch close operation

FAIL-SAFE CONTROL
The encoder signal detects the up / down speed / detection of door glass. If the malfunction is detected to the encoder signal or the difference between the glass fully closed position (memorized in power window main switch or power window sub-switch) and the actual glass position is detected, it shifts into the fail-safe control










It is shifts into the fail-safe control, the initialization is not performed and the following function is not activated
- Auto up operation
- Anti-pinch function
It is shifts into the fail-safe control, performed the initialization to resume normal operation condition.

POWER WINDOW CONTROL BY THE KEY CYLINDER SWITCH
When ignition key switch is OFF, front power window can be opened or closed by turning the key cylinder switch UNLOCK / LOCK position more than 1.5 second over condition.
- Power window can be opened as the door key cylinder is kept fully turning to the UNLOCK position.
- Power window can be closed as the door key cylinder is kept fully turning to the LOCK position.
The power window DOWN stops when the following operations are carried out.
- While performing open / close the window, power window is stopped at the position as the door key cylinder is placed on NEUTRAL.
- When the ignition switch is turned ON while the power window DOWN is operated.
pro multis · About Operation CHARM