Nissan Maxima. Manual - part 929

POWER WINDOW SYSTEM

PWC-13

< SYSTEM DESCRIPTION >

[LH&RH FRONT WINDOW ANTI-PINCH]

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Component Description

INFOID:0000000010051193

Component

Function

BCM

• Supplies power supply to power window switch.
• Controls retained power.

Main power window and door lock/un-
lock switch

• Directly controls all power window motor of all doors.
• Controls anti-pinch operation of power window.

Power window and door lock/unlock 
switch RH

• Controls power window motor of passenger door.
• Controls anti-pinch operation of power window.

Rear power window switch 

• Controls power window motor of rear right and left doors.

Front power window motor

• Integrates the ENCODER POWER and WINDOW MOTOR.
• Starts operating with signals from main power window and door lock/unlock switch & 

power window and door lock/unlock switch RH.

• Transmits power window motor rotation as a pulse signal to power window switch.

Rear power window motor

Starts operating with signals from  main power window and door lock/unlock switch & 
rear power window switch.

Front door lock assembly (key cylinder 
switch)

Transmits operation condition of key cylinder switch to  main power window and door 
lock/unlock switch.

Front door switch

Detects door open/close condition and transmits to BCM.

PWC-14

< SYSTEM DESCRIPTION >

[LH&RH FRONT WINDOW ANTI-PINCH]

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000010062644

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

RETAINED PWR

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Work support

Changes the setting for each system function.

Configuration

• Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.

CAN Diag Support Mntr

Monitors the reception status of CAN communication viewed from BCM.

System

Sub System

Direct Diagnostic Mode

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Door lock

DOOR LOCK

×

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEADLAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Trunk open

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×

DIAGNOSIS SYSTEM (BCM)

PWC-15

< SYSTEM DESCRIPTION >

[LH&RH FRONT WINDOW ANTI-PINCH]

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RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)

INFOID:0000000010062645

DATA MONITOR

Monitor Item [Unit]

Description

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH

PWC-16

< DTC/CIRCUIT DIAGNOSIS >

[LH&RH FRONT WINDOW ANTI-PINCH]

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM
BCM : Diagnosis Procedure

INFOID:0000000010062651

Regarding Wiring Diagram information, refer to 

BCS-67, "Wiring Diagram"

.

1.

 CHECK FUSE AND FUSIBLE LINK

Check if the following BCM fuses or fusible link are blown.

Is the fuse or fusible link blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

BCM : Special Repair Requirement

INFOID:0000000010062652

1.

 REQUIRED WORK WHEN REPLACING BCM

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

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10

24

7

Terminals

Voltage

(Approx.)

(+)

(

−)

BCM

Ground

Connector

Terminal

M16

1

Battery voltage

M17

11

M18

24

BCM

Ground

Continuity

Connector

Terminal

M17

13

Yes