Page 3257 of 4449

GW-98
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52
and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Rear Window Defogger Switch Circuit CheckAIS004RA
1. CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-II
Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between BCM connector ground.
OK or NG
OK >> Rear window defogger switch is OK.
NG >> GO TO 2.49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E
When rear window defogger switch is turned to ON
REAR DEF SW : ON
When ignition switch is turned to ON
IGN ON SW : ON
PIIA2373E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3 9 (L/W) GroundRear window defogger
switch is pressed.0
Rear window defogger
switch is OFF.5
PIIA6208E
Page 3258 of 4449
REAR WINDOW DEFOGGER
GW-99
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2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and A/C and AV switch connector.
3. Check continuity between BCM connector M3 terminal 9 and A/
C and AV switch connector M64 terminal 16.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between BCM and A/C and
AV s w i t c h .
3. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M3 terminal 9 and
ground.
OK or NG
OK >> Replace A/C and AV switch.
NG >> Replace BCM.9 (L/W) – 16 (L/W) : Continuity should exist.
PIIA6209E
9 (L/W) – Ground : Approx. 5
PIIA6208E
Page 3259 of 4449
![INFINITI FX35 2004 Service Manual GW-100
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Power Supply Circuit CheckAIS004RB
1. CHECK FUSE
Check 10A fuse [No.12, located in fuse block (J/B)]
Check 20 INFINITI FX35 2004 Service Manual GW-100
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Power Supply Circuit CheckAIS004RB
1. CHECK FUSE
Check 10A fuse [No.12, located in fuse block (J/B)]
Check 20](/manual-img/42/57021/w960_57021-3258.png)
GW-100
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Power Supply Circuit CheckAIS004RB
1. CHECK FUSE
Check 10A fuse [No.12, located in fuse block (J/B)]
Check 20A fuse (No.75, located in the IPDM E/R)
Check 20A fuse (No.80, located in the IPDM E/R)
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse, refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger terminals 3 and 5, 6
and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
ConnectorTerminals (Wire color)
Voltage (V)
(Approx.)
(+) (-)
E131 (OR)
Ground Battery voltage 3 (W)
6 (R)
PIIA4233E
Terminal Condition Continuity
3512V direct current supply
between terminals 1 and 2Ye s
No current supply No
6712V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B
Page 3260 of 4449

REAR WINDOW DEFOGGER
GW-101
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Revision: 2004 November 2004 FX35/FX45
4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and rear window defogger relay.
3. Check continuity between IPDM E/R connector E9 terminal 52
and rear window defogger relay connector E13 terminal 2.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness between IPDM E/R and rear
window defogger relay.
6. CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Connect IPDM E/R and rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R connector E9 terminal 52 and
ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace IPDM E/R.
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
E9 52 (G) GroundWhen rear window defog-
ger switch ON0
When rear window defog-
ger switch OFFBattery
voltage
PIIA6210E
52 (G) – 2 (G) : Continuity should exist.
PIIA6211E
52 (G) – Ground : Battery voltage
PIIA6210E
Page 3261 of 4449

GW-102
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Circuit CheckAIS004RC
1. CHECK POWER SUPPLY CIRCUIT 1
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 GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector
D114 terminal 2 and ground.
OK or NG
OK >> Check filament. Refer to GW-107, "Filament Check"
If filament is OK, check condition of harness and con-
nector.
If filament is NG, repair filament.
NG >> Repair or replace harness between rear window defog-
ger and ground.
3. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Check continuity between rear window defogger relay connector
E13 terminal 5, 7 and rear window defogger connector D104 ter-
minal 1.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness rear window defogger relay
and condenser.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D104 1(W) GroundRear window defogger
switch ON. Battery voltage
Rear window defogger
switch OFF.0
PIIA9347E
2 (B) − Ground : Continuity should exist.
PIIA9348E
5 (B) – 1 (W) : Continuity should exist.
7 (B) – 1 (W) : Continuity should exist.
PIIA9349E
Page 3262 of 4449

REAR WINDOW DEFOGGER
GW-103
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Revision: 2004 November 2004 FX35/FX45
Door Mirror Defogger Power Supply Circuit CheckAIS004RD
1. CHECK FUSE
Check 15A fuse [No.8, located in fuse block (J/B)]
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between fuse block (J/B) connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between rear window defog-
ger relay and fuse block (J/B).
3. CHECK POWER SUPPLY CIRCUIT 2
Check voltage between fuse block (J/B) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace fuse block (J/B).
4. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) and door mirror connector.
3. Check continuity between fuse block (J/B) connector M2 termi-
nal 5B and door mirror connector D2 (driver side) or D32 (pas-
senger side) terminal 1.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between fuse block (J/B) and
malfunction door mirror connector.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
E201 2C (B) GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
PIIA2388E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M2 5B (L) GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
PIIA2386E
5B (L) – 1 (L) : Continuity should exist.
PIIA6213E
Page 3263 of 4449

GW-104
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
5. CHECK GROUND CIRCUIT
Check continuity between each door mirror connector D2 (driver
side), D32 (passenger side) terminal 2 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
6. CHECK DOOR MIRROR DEFOGGER
1. Connect door mirror connector.
2. Check continuity between each door mirror connector D2 (driver
side), D32 (passenger side) terminals 1 and 2.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace malfunctioning door mirror.
Driver Side Door Mirror Defogger Circuit CheckAIS004RE
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (driver side) connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and door mirror (driver side).2 (B) – Ground : Continuity should exist.
PIIA6214E
1 (L) – 2 (B) : Continuity should exist.
PIIA6215E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D2 1 (L) GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
PIIA6216E
Page 3264 of 4449

REAR WINDOW DEFOGGER
GW-105
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Revision: 2004 November 2004 FX35/FX45
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror (driver side) connector D2
terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between door mirror (driver
side) and ground.
3. CHECK DOOR MIRROR DEFOGGER
1. Connector door mirror connector.
2. Check continuity between each door mirror connector D2 (driver
side) terminals 1 and 2.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace door mirror (driver side).
Passenger Side Door Mirror Defogger Circuit Check AIS004RF
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (passenger side) connector
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and door mirror (passenger side).2 (B) – Ground : Continuity should exist.
PIIA6214E
1 (L) – 2 (B) : Continuity should exist.
PIIA6215E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D32 1 (L) GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
PIIA6216E