Nissan Quest E52. Manual - part 313

DEF-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

Rear window defogger

INFOID:0000000009650811

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

INFOID:0000000009650812

Heats the heating wire with the power supply from the rear window
defogger relay to prevent the door mirror from fogging up.

JMLIA2595GB

JMLIA2596GB

SYSTEM

DEF-7

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

SYSTEM

System Description

INFOID:0000000009650813

SYSTEM DIAGRAM

*

1

: With auto A/C

*

2

: With manual A/C

OPERATION DESCRIPTION

• When BCM receives rear window defogger switch signal, BCM transmits rear window defogger ON signal to

rear window defogger relay (integrated in fuse block J/B) for approximately 15 minutes.

• When rear window defogger relay (integrated in fuse block J/B) turns ON, power supply is supplied to rear

window defogger and door mirror defogger (For models with door mirror defogger).

• When rear window defogger and door mirror defogger (For models with door mirror defogger) are operated,

rear window defogger feedback signal is transmitted to A/C auto amp.*

1

 or A/C amp.*

2

, and then indicator

lamp of rear window defogger switch is turned ON.

*

1

: With auto A/C

*

2

: With manual A/C

TIMER FUNCTION

• BCM transmits rear window defogger ON signal to rear window defogger relay (integrated in fuse block J/B)

for approximately 15 minutes when rear window defogger switch is turned ON while ignition switch is ON.

• Timer is cancelled when rear window defogger switch is pressed again during timer operation. BCM stops

the output of rear window defogger ON signal. The same reaction also occurs during timer operation when
ignition switch is turned OFF.

JMLIA2164GB

DEF-8

< SYSTEM DESCRIPTION >

SYSTEM

Circuit Diagram

INFOID:0000000009650814

JMLIA2151GB

DIAGNOSIS SYSTEM (BCM)

DEF-9

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000009957621

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

×

: Applicable item

NOTE:

*: For models with automatic air conditioning control system, this diagnosis mode is not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from BCM.

Data Monitor

The BCM input/output signals are displayed.

Active Test

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

Ecu Identification

The BCM part number is displayed.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp control system

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

Air conditioning control system

AIR CONDITONER

×

×

*

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

NVIS

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door open

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×