Infiniti G35 (V35) Sedan. Manual - part 321

DEF-6

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

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

INFOID:0000000000962683

APPLICATION ITEM

CONSULT-III 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.

*: This item is displayed, but is not used. 

REAR WINDOW DEFOGGER

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

INFOID:0000000000962684

Data monitor

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

SELF-DIAG RESULTS

Displays the diagnosis results judged by BCM. Refer to 

BCS-74, "DTC Index"

.

CAN DIAG SUPPORT MNTR

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

This function is not used even though it is displayed.

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 timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

Air conditioner*

AIR CONDITONER

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

BCM

BCM

×

IVIS - NATS

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

TPMS (AIR PRESSURE MONI-
TOR)

×

×

×

DIAGNOSIS SYSTEM (BCM)

DEF-7

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

ACTIVE TEST

Monitor Item

Description

REAR DEF SW

This is displayed even when it is not equipped.

PUSH SW

Indicates [ON/OFF] condition of push switch.

Test Item

Description

REAR DEFOGGER

This test is able to check rear window defogger operation. Rear window defogger operates when 
“ON” on CONSULT-III screen is touched.

DEF-8

< COMPONENT DIAGNOSIS >

REAR WINDOW DEFOGGER SWITCH

COMPONENT DIAGNOSIS

REAR WINDOW DEFOGGER SWITCH

Description

INFOID:0000000000962685

• The rear window defogger is operated by turning the rear window defogger switch ON.
• Turns the indicator lamp in the rear window defogger switch ON when operating the rear window defogger.

Component Function Check

INFOID:0000000000962686

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON.

Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to 

DEF-8, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000962687

1.

CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH)

Does malfunction switch operate normally?
Base audio without navigation. Refer to 

AV-19, "Diagnosis Description"

.

Bose audio without navigation. Refer to 

AV-138, "Diagnosis Description"

.

Bose audio with navigation. Refer to 

AV-333, "Diagnosis Description"

.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace multifunction switch (rear window defogger switch). Refer to

AV-541, "Removal and

Installation"

.

REAR WINDOW DEFOGGER RELAY

DEF-9

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

REAR WINDOW DEFOGGER RELAY

Description

INFOID:0000000000962688

Power is supplied to the rear window defogger with BCM control.

Component Function Check

INFOID:0000000000962689

1.

CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

Check that an operation noise of rear window defogger relay can be heard when turning the rear window
defogger switch ON.
Is the inspection result normal?

YES

>> Rear window defogger relay power supply circuit is OK.

NO

>> Refer to 

DEF-9, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000962690

1.

CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> Rear window defogger power supply circuit is OK.

NO

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and rear window defogger relay.

3.

Check continuity between BCM connector and rear window defogger relay connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.
Refer to 

DEF-10, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace rear window defogger relay.

4.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-39, "Intermittent Incident"

Is the inspection result normal?

YES

>>

Check the following.

• Batter power supply circuit.
• Fuse block (J/B).

Terminals

Condition of rear window defog-

ger switch

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal 

M123

151

Ground

ON 0

OFF

Battery voltage

BCM connector

Terminal

Fuse block (J/B) connector

Terminal

Continuity 

M123

151

M2

4B

Existed