Power supply INFINITI FX35 2004 Service Manual

FRONT FOG LAMP
LT-83
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
Refer to LT-79, "Wiring Diagram — F/FOG —" .
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 PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
CONSULT-II FunctionsAKS007CQ
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" in HEAD LAMP.
Refer to LT- 2 1 , "
CONSULT-II Functions (IPDM E/R)" in HEAD LAMP.
IPDM E/R Battery71
78
88 Unit Power source Fuse and fusible link No.
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E

LT-98
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2004 November 2004 FX35/FX45
How to Proceed With Trouble DiagnosisAKS007D2
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 8 9 , "
System Description" .
3. Perform.preliminary check. Refer to LT- 9 9 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do turn signal and hazard warning lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END
34 W/B Combination switch output 3 ONLighting, turn, wiper OFF
Wiper dial position 4
35 W/G Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 W/R Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 L CAN−H—— —
40 R CAN−L—— —
42 L/R Battery power supply OFF — Battery voltage
45 G/W Turn signal (left) ONCombination
switchTurn le ft
ON
46 BR/W Turn signal (right) ONCombination
switchTurn right
ON
49 B Ground ON — Approx. 0V
52 B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5291E
SKIA5292E
SKIA3009J
SKIA3009J

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-99
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
Preliminary CheckAKS007D3
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES

Check fuses for blown-out.
Refer to LT-94, "Wiring Diagram — TURN —" .
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 PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E

LT-104
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2004 November 2004 FX35/FX45
2. CHECK TURN SIGNAL LAMPS CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal
45 (G/W) and rear combination lamp control unit harness con-
nector B65 terminal 4 (OR).
3. Check continuity between BCM harness connector M4 terminal
46 (BR/W) and rear combination lamp control unit harness con-
nector B65 terminal 5 (PU).
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3. CHECK POWER SUPPLY CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check voltage between rear combination lamp control unit har-
ness connector B65 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
Check continuity between rear combination lamp control unit har-
ness connector B65 terminal 7 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.45 (G/W) – 4 (OR) : Continuity should exist.
46 (BR/W) – 5 (PU) : Continuity should exist.
PKIA5220E
1 (GY) – Ground : Battery voltage should exist.
SKIA5907E
7 (B) – Ground : Continuity should exist.
SKIA5908E

STOP LAMP
LT-121
C
D
E
F
G
H
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L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
Stop Lamp Does Not OperateAKS007IJ
1. CHECK TAIL LANP AND TURN SIGNAL LAMP
Make sure tail lamps and turn signal lamps are illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 6.
2. CHECK FUSE
Check fuse No. 20 is blow out.
OK or NG
OK >> GO TO 3.
NG >> If fuse is blow out, be sure to eliminate cause of malfunction before installing new fuse.
3. CHECK INPUT SIGNAL
Check voltage between rear combination lamp control unit harness
connector B65 terminal 3 (P) and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> GO TO 4.
4. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch connector.
3. Check voltage between stop lamp switch harness connector
E210 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK STOP LAMP SWITCH CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check continuity between stop lamp switch harness connector
E210 terminal 2 (P) and rear combination lamp control unit har-
ness connector B65 terminal 3 (P).
OK or NG
OK >> Replace stop lamp switch.
NG >> Repair harness or connector.
Terminals
(-) Condition Voltage
ConnectorTerminal
(Wire color)
B65 3 (P) GroundStop lamp switch is ON.
(Depressed)Battery voltage
Stop lamp switch is OFF.
(Released)Approx. 0
PKIA5233E
1 (GY) – Ground : Battery voltage should exist.
PKIA5234E
2 (P) – 3 (P) : Continuity should exist.
PKIA5235E

LT-122
STOP LAMP
Revision: 2004 November 2004 FX35/FX45
6. CHECK POWER SUPPLY CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check voltage between rear combination lamp control unit har-
ness connector B65 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK GROUND CIRCUIT
Check continuity between rear combination lamp control unit har-
ness connector B65 terminal 7 (B) and ground.
OK or NG
OK >> GO TO 8.
NG >> Repair harness or connector.
8. CHECK STOP LAMPS CIRCUIT
1. Disconnect rear combination lamp RH and LH connector.
2. Check continuity between rear combination lamp control unit
harness connector B65 terminal 11 (W) and rear combination
lamp LH harness connector B57 terminal 3 (W).
3. Check continuity between rear combination lamp control unit
harness connector B65 terminal 10 (BR) and rear combination
lamp LH harness connector B57 terminal 4 (BR).
4. Check continuity between rear combination lamp control unit
harness connector B65 terminal 9 (LG) and rear combination lamp RH harness connector B77 terminal 3
(LG).
5. Check continuity between rear combination lamp control unit harness connector B65 terminal 8 (Y) and
rear combination lamp RH harness connector B77 terminal 4 (Y).
OK or NG
OK >> Replace rear combination lamp control unit or rear combination lamp, and then check if turn signal
lamps is illuminated.
NG >> Repair harness or connector.1 (GY) – Ground : Battery voltage should exist.
SKIA5907E
7 (B) – Ground : Continuity should exist.
SKIA5908E
11 (W) – 3 (W) : Continuity should exist.
10 (BR) – 4 (BR) : Continuity should exist.
9 (LG) – 3 (LG) : Continuity should exist.
8 (Y) – 4 (Y) : Continuity should exist.
SKIA5910E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-137
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for IPDM E/RAKS007IM
How to Proceed With Trouble DiagnosisAKS007E0
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 2 7 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 3 7 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do the parking, license and tail lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END
Preliminary CheckAKS007E1
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES

Check fuses for blown-out.
35 W/G Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 W/R Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 L CAN− H—— —
40 R CAN− L—— —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0V
52 B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition switch Operation or condition
SKIA5292E
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
22 RParking, license,
and tail lampONLighting switch
1ST positionOFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
48 L CAN− H—— —
49 R CAN− L—— —
60 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
78
Rear combination lamp control unit Battery 20

LT-138
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45
Refer to LT- 1 3 1 , "Wiring Diagram — TAIL/L —" .
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 PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
CONSULT-II FunctionsAKS007E2
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" in HEAD LAMP.
Refer to LT- 2 1 , "
CONSULT-II Functions (IPDM E/R)" in HEAD LAMP.
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E

LT-144
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45
Tail Lamp Does Not OperateAKS007IN
1. CHECK STOP LAMP AND TURN SIGNAL LAMP
Make sure stop lamps and turn signal lamps are illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK INPUT SIGNAL
Check voltage between rear combination lamp control unit harness
connector B65 terminal 2 (R) and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear combination lamp control unit connector.
3. Check voltage between rear combination lamp control unit har-
ness connector B65 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
Check continuity between rear combination lamp control unit har-
ness connector B65 terminal 7 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
Terminal
(-) Condition Voltage (+)
ConnectorTerminal
(Wire color)
B65 2 (R) GroundLighting switch 1ST
position is ON.Battery voltage
Lighting switch 1ST
position is OFF.Approx. 0
PKIA5248E
1 (GY) – Ground : Battery voltage should exist.
SKIA5907E
7 (B) – Ground : Continuity should exist.
SKIA5908E

INTERIOR ROOM LAMP
LT-157
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationAKS007O8
System DescriptionAKS007F7
When room lamp and personal lamp switch is in DOOR position, room lamp and personal lamp ON/OFF is
controlled by timer according to signals from switches including key switch, front door switch driver side,
unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch.
When room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room lamp
and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without intelligent key system)

through 15A fuse [No. 22, located in fuse block (J/B)]

to key switch terminal 2 and

to BCM (body control module) terminal 42

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM (body control module) terminal 55.
Power is supplied at all times (with intelligent key system)

through 10A fuse [No.38, located in fuse and fusible link block]

to key switch and ignition knob switch terminals 1

through 15A fuse [No.22, located in fuse block (J/B)]

to BCM (body control module) terminal 42

to key switch and ignition knob switch terminal 3, and

to key switch terminal 2

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM (body control module) terminal 55.
When the key plate inserted to key switch, power is supplied (without intelligent key system)

through the key switch terminal 1

to BCM (body control module) terminal 37.
PKIA2923E