Infiniti F50. Manual — part 600
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REAR WINDOW DEFOGGER
GW-71
C
D
E
F
G
H
J
K
L
M
A
B
GW
4.
CHECK REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER RELAY GROUND HARNESS
1.
Turn ignition switch ON.
2.
Turn rear window defogger switch OFF.
3.
Installation rear window defogger and door mirror defogger relay.
4.
Check voltage between BCM connector B4 terminal 144 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 6.
5.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect condenser and rear window defogger remove door mirror defogger relay connectors.
3.
Check continuity between condenser B25 terminal 1 and rear
window and door mirror defogger relay connector B8 terminal 7.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Repair or replace harness between condenser and rear
window defogger and door mirror defogger relay.
6.
CHECK BCM HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect BCM and rear window defogger and door mirror defogger relay connectors.
3.
Check continuity between BCM connector B4 terminal 144 and rear window defogger and door mirror
defogger relay connector B8 terminal 2.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Repair or replace harness between BCM and rear win-
dow defogger and door mirror defogger relay.
144 (G/W) – Ground
: Battery voltage
PIIA0211E
1 (LR) – 7 (L/R)
:Continuity should exist.
PIIA3520E
144 (G/W) – 2 (G/W)
:Continuity should exist.
PIIA3516E
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GW-72
REAR WINDOW DEFOGGER
Rear Window Defogger Circuit Check
EIS003T1
1.
CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear window defogger connector.
3.
Turn ignition switch ON.
4.
Check voltage between rear window defogger connector and ground.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
CHECK REAR WINDOW DEFOGGER GROUND HARNESS
1.
Turn ignition switch OFF.
2.
Check continuity between rear window defogger connector B421 terminal 1 and ground.
OK or NG
OK
.
●
If filament is OK, check the condition of the harness
and the connector.
●
If filament is NG, repair filament.
NG
>> Repair or replace harness between rear window defog-
ger and ground.
3.
CHECK CONDENSER POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect condenser connector.
3.
Turn ignition switch ON.
4.
Check voltage between condenser connector and ground.
OK or NG
OK
>> Repair or replace harness between condenser and rear
window defogger.
NG
>> GO TO 4.
Con-
nector
Terminal
(Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
B181
2 (B)
Ground
Rear window defogger
switch ON.
Battery voltage
Rear window defogger
switch OFF.
0
PIIA3517E
1(B)
−
Ground
:Continuity should exist
PIIA3518E
Con-
nector
Terminal
(Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
B25
1 (L/R)
Ground
Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF.
0
PIIA3519E
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REAR WINDOW DEFOGGER
GW-73
C
D
E
F
G
H
J
K
L
M
A
B
GW
4.
CHECK CONDENSER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear window defogger and door mirror defogger relay connector.
3.
Check continuity between condenser connector B25 terminal 1 and rear window defogger and door mirror
defogger relay connector B8 terminal 7.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Repair or replace harness condenser and rear window
defogger and door mirror defogger relay.
Door Mirror Defogger Power Supply Circuit Check
EIS003T2
1.
CHECK FUSE
Check if any of the following fuses for Fuse block (J/B) are 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 malfunction before installing new fuse, refer to
2.
CHECK DOOR MIRROR DEFOGGER RELAY POWER SUPPLY CIRCUIT 1
1.
Turn ignition switch OFF.
2.
Remove door mirror defogger relay.
3.
Turn ignition switch ON.
4.
Check voltage between door mirror defogger relay connector and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace between harness rear window defog-
ger and door mirror defogger relay and door mirror defogger relay.
1 (L/R) – 7 (L/R)
:Continuity should exist.
PIIA3520E
System
Terminal No.
Power source
Fuse No.
Ampere (A)
Door mirror defogger
3A
AAC power supply
#4
10
Con-
nector
Terminal
(Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
B10
2 (L/R)
Ground
Rear window defogger
switch ON.
Battery voltage
Rear window defogger
switch OFF.
0
PIIA2896E
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GW-74
REAR WINDOW DEFOGGER
3.
CHECK DOOR MIRROR DEFOGGER RELAY
Check continuity between door mirror defogger relay terminals 3 and 5.
OK or NG
OK
>> GO TO 4.
NG
>> Replace door mirror defogger relay.
4.
CHECK DOOR MIRROR DEFOGGER RELAY GROUND HARNESS
1.
Turn ignition switch OFF.
2.
Check continuity between door mirror defogger relay connector B10 terminal 1 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness between door mirror defogger
relay and ground.
5.
CHECK DOOR MIRROR DEFOGGER RELAY POWER SUPPLY CIRCUIT 2
Check voltage between door mirror defogger relay connector B10 terminal 5 and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace harness between door mirror defogger
relay and fuse.
Terminal
Condition
Continuity
3
5
12V direct current supply
between terminals 1 to 2
Should exist
No current supply
Should not exist
PIIA2636E
1 (B)
−
Ground
:Continuity should exist
PIIA2897E
5 (P/B) – Ground
: Battery voltage
PIIA2898E
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