Infiniti F50. Manual - part 598

REAR WINDOW DEFOGGER

GW-63

C

D

E

F

G

H

J

K

L

M

A

B

GW

TIWM0207E

GW-64

REAR WINDOW DEFOGGER

TIWM0179E

REAR WINDOW DEFOGGER

GW-65

C

D

E

F

G

H

J

K

L

M

A

B

GW

Terminals and reference value for BCM

EIS003SV

Work Flow

EIS003SW

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

GW-59, "System Description"

 .

3.

The preliminary check. Refer to 

GW-65, "Preliminary Check"

 .

4.

According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to 

GW-68,

"Trouble Diagnoses Symptom Chart"

 .

5.

Does rear defogger operate normally? 
OK: GO TO 6.  
NG:  GO TO 4.

6.

Inspection end.

Preliminary Check

EIS003T7

POWER SUPPLY AND GROUND CIRCUIT INSPECTION

1. 

FUSE INSPECTION

●

Check that any of the following fuses in the BCM is blown.

NOTE:
Refer to 

GW-59, "Component Parts and Harness Connector Location"

 .

OK or NG?

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to 

PG-2,

"POWER SUPPLY ROUTING"

 .

TERMINAL

WIRE COLOR

ITEM

CONDITION

VOLTAGE [V]

(Approx.)

10

G/R

Rear defogger switch signal

Rear defogger switch ON
(With the switch pressed)

0

Rear defogger switch OFF

5

56

B

Ground

–

0

68

W/B

IGN power supply

Ignition switch ON or START

Battery voltage

105

Y/L

BAT power supply

–

Battery voltage

113

B

Ground

–

0

144

G/W

Rear window defogger and door mir-
ror defogger relay control signal

Rear defogger switch ON

0

Rear defogger switch OFF

Battery voltage

Unit

Terminal NO.

Power source

Fuse NO.

BCM

105

BAT power supply

#3

68

IGN power supply

#1

GW-66

REAR WINDOW DEFOGGER

2. 

POWER SUPPLY CIRCUIT INSPECTION (BCM)

1.

Turn ignition switch OFF.

2.

Disconnect the BCM connector M4, check voltage between connector terminal (refer to the Chart below)
of the harness connector and ground.

OK or NG?

OK

>> GO TO 3.

NG

>> Check harness for open and short between BCM and fuse.

3. 

GROUND CIRCUIT INSPECTION (BCM)

Check continuity between BCM connector M4 terminals and ground.

OK or NG?

OK

>> System is OK.

NG

>> Repair or replace harness.

CONSULT-II Function

EIS003SX

CONSULT-II BASIC OPERATION PROCEDURE

1.

Turn ignition switch “OFF”.

2.

Connect “CONSULT-II” and CONSULT-II CONVERTER to data
link connector.

Terminals

Power source

Condition

Voltage [V]

(Approx.)

(+)

(–)

Connector

Terminal

(Wire color)

M4

105(Y/L)

Ground

BAT
power supply

Ignition 
switch OFF

Battery 
voltage

68(W/B)

Ground

IGN 
power supply

Ignition 
switch ON

Battery 
voltage

PIIA0206E

56 (B) – Ground

:Continuity should exist.

113 (B) – Ground

:Continuity should exist.

PIIA0170E

PBIB1069E