Nissan Altima L32. Manual - part 1082

INSPECTION AND ADJUSTMENT

PWC-95

< BASIC INSPECTION >

[LH ONLY ANTI-PINCH-SEDAN]

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : De-
scription

INFOID:0000000004204998

Initial setting is necessary when battery terminal is removed.

CAUTION:

The following specified operations are not performed under the non-initialized condition.

• Auto-up operation

• Anti-pinch function

• Retained power operation

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement

INFOID:0000000004204999

INITIALIZATION PROCEDURE

1. Disconnect battery minus terminal or power window main switch connector. Reconnect it after a minute or

more. 

2. Turn ignition switch ON.

3. Operate power window switch to fully open the window. (This operation is unnecessary if the window is

already fully open)

4. Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed

position, keep pulling the switch for 4 seconds or more. 

5. Inspect anti-pinch function.

CHECK ANTI-PINCH FUNCTION

1. Fully open the door window.

2. Place a piece of wood near fully closed position.

3. Close door glass completely with AUTO-UP.

• Check that glass lowers for approximately 150 mm or 2 seconds without pinching  piece of wood and stops.

• Check that glass does not rise when operating the power window main switch while lowering.

CAUTION:

• Do not check with hands and other part of body because they may be pinched.  Do not get pinched.

• Check that AUTO-UP operates before inspection when system initialization is performed.

• It may switch to fail-safe mode if open/close operation is performed continuously. Perform initial set-

ting in that situation.  Refer to 

PWC-135, "Fail Safe"

.

• Perform initial setting when auto-up operation or anti-pinch function does not operate normally.

• Finish initial setting. Otherwise, next operation cannot be done.

1. Auto-up operation

2. Anti-pinch function

3. Retained power operation when ignition switch is OFF.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000004205000

Initial setting is necessary when replacing power window main switch.

CAUTION:

The following specified operations are not performed under the non-initialized condition.

• Auto-up operation

• Anti-pinch function

• Retained power operation

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000004205001

INITIALIZATION PROCEDURE

1. Disconnect battery minus terminal or power window main switch connector. Reconnect it after a minute or

more. 

PWC-96

< BASIC INSPECTION >

[LH ONLY ANTI-PINCH-SEDAN]

INSPECTION AND ADJUSTMENT

2. Turn ignition switch ON.

3. Operate power window switch to fully open the window. (This operation is unnecessary if the window is

already fully open)

4. Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed

position, keep pulling the switch for 4 seconds or more. 

5. Inspect anti-pinch function.

CHECK ANTI-PINCH FUNCTION

1. Fully open the door window.

2. Place a piece of wood near fully closed position.

3. Close door glass completely with AUTO-UP.

• Check that glass lowers for approximately 150 mm or 2 seconds without pinching  piece of wood and stops.

• Check that glass does not rise when operating the power window main switch while lowering.

CAUTION:

• Do not check with hands and other part of body because they may be pinched.  Do not get pinched.

• Check that AUTO-UP operates before inspection when system initialization is performed.

• It may switch to fail-safe mode if open/close operation is performed continuously. Perform initial set-

ting in that situation.  Refer to 

PWC-135, "Fail Safe"

.

• Perform initial setting when auto-up operation or anti-pinch function does not operate normally.

• Finish initial setting. Otherwise, next operation cannot be done.

1. Auto-up operation

2. Anti-pinch function

3. Retained power operation when ignition switch is OFF.

POWER WINDOW SYSTEM

PWC-97

< FUNCTION DIAGNOSIS >

[LH ONLY ANTI-PINCH-SEDAN]

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FUNCTION DIAGNOSIS

POWER WINDOW SYSTEM

System Diagram

INFOID:0000000004205002

FRONT POWER WINDOW LH ANTI-PINCH SYSTEM

System Description

INFOID:0000000004205003

MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH

INPUT/OUTPUT SIGNAL CHART

POWER WINDOW OPERATION

• Power window system is operable during the retained power operation timer after turning ignition switch ON

and OFF.

• Main power window and door lock/unlock switch can open/close all windows.

• Front & rear power window switches can open/close the corresponding windows.

POWER WINDOW AUTO-OPERATION (FRONT LH)

ALMIA0059GB

Item

Input signal to main power window and 

door lock/unlock switch

Main power window and door 

lock/unlock switch function

Actuator

Encoder

Encoder pulse signal

Power window control

Front power window motor

Main power window 
and door lock/unlock 
switch

Front power window motor LH UP/
DOWN signal

Power window and 
door lock/unlock 
switch RH 

Front power window motor RH UP/
DOWN signal

BCM

RAP signal

Rear power window 
switch

Rear power window motor UP/DOWN 
signal

Rear power window motor

PWC-98

< FUNCTION DIAGNOSIS >

[LH ONLY ANTI-PINCH-SEDAN]

POWER WINDOW SYSTEM

• AUTO UP/DOWN operation can be performed when main power window and door lock/unlock switch turns

to AUTO.

• Encoder continues detecting the movement of power window motor and transmits to main power window

and door lock/unlock switch as the encoder pulse signal while power window motor is operating.

• Main power window and door lock/unlock switch reads the changes of encoder signal and stops AUTO oper-

ation when door glass is at fully opened/closed position.

• Power window motor is operable in case encoder is malfunctioning.

RETAINED POWER OPERATION 

• Retained power operation is an additional power supply function that enables power window system to oper-

ate 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.

• When timer time passes. (45 seconds)

POWER WINDOW LOCK

Ground circuit inside main power window and door lock/unlock switch shuts off when power window lock

switch is ON. This inhibits power window switch operation except with the main power window and door lock/

unlock switch.

ANTI-PINCH OPERATION (FRONT LH)

• Pinch foreign material in the door glass during AUTO-UP operation,and it is the anti-pinch function that low-

ers the door glass 150 mm or 2 seconds when detected.

• Encoder continues detecting the movement of power window motor and transmits to main power window

and door lock/unlock switch as the encoder pulse signal while power window motor is operating.

• Resistance is applied to the power window motor rotation that changes the frequency of encoder pulse sig-

nal if foreign material is trapped in the door glass.

• Power window switch controls to lower the window glass for 150 mm or 2 seconds after it detects encoder

pulse signal frequency change.

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.