Nissan Sentra. Manual - part 210

COMPONENT PARTS

DEF-5

< SYSTEM DESCRIPTION >

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Component Description

INFOID:0000000009759084

1: 

With heated mirrors

Component

Description

BCM

• Operates the rear window defogger with the operation of rear window defogger switch.
• Performs the timer control of rear window defogger.

Rear window defogger relay

• Operates the rear window defogger and the door mirror defogger

1

 with the control signal from 

BCM.

A/C auto amp

• Displays the rear window defogger ON to the display when detecting the operation of the rear 

window defogger.

A/C switch assembly (rear 
window defogger switch)

• The rear window defogger switch is turned ON.

Rear window defogger

• Heats the heating wire with the power supply from the rear window defogger relay to prevent 

the rear window from fogging up.

Door mirror defogger

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• Heats the heating wire with the power supply from the rear window defogger relay to prevent 

the door mirror from fogging up.

DEF-6

< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

System Description

INFOID:0000000009759085

SYSTEM DIAGRAM

OPERATION DESCRIPTION

• A/C control transmits rear window defogger switch signal to A/C auto amp. when rear window defogger

switch turns ON while ignition switch is ON.

• A/C auto amp. transmits rear window defogger switch signal to BCM

• BCM transmits rear window defogger control signal to IPDM E/R via CAN communication.

• IPDM E/R turns rear window defogger relay ON when rear window defogger control signal is received.

• The power is supplied to rear window defogger and door mirror defogger* when rear window defogger relay

is ON.

• When rear window defogger is activated, rear window defogger feedback signal is transmitted to A/C control

via A/C auto amp. and the indicator lamp on rear window defogger switch turns on.

*: With door mirror defogger.

TIMER FUNCTION

• BCM transmits rear window defogger control signal to IPDM E/R for approximately 15 minutes when the rear

window defogger switch turns ON while ignition switch is ON. Then, IPDM E/R activates rear window defog-

ger and door mirror defogger*.

• The timer is cancelled if rear window defogger switch is pressed again during timer operation, and BCM

stops the output of rear window defogger control signal. The same action occurs during timer operation if

ignition switch is OFF.

*: With door mirror defogger.

ALLIA1209GB

DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)

DEF-7

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)

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

INFOID:0000000010288762

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

Direct Diagnostic Mode

Description

ECU identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

ECU id

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CAN DIAG SUP

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Door lock

DOOR LOCK

×

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

×

Air conditioner

AIR CONDITIONER

×

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

×

×

×

×

DEF-8

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)

REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)

INFOID:0000000010288763

DATA MONITOR

ACTIVE TEST

Monitor Item [Unit]

Description

PUSH SW [On/Off]

Indicates condition of push-button ignition switch.

REAR DEF SW [On/Off]

Indicates condition of rear window defogger switch.

Test Item

Description

REAR DEFOGGER

This test is able to check rear window defogger operation [Off/On].