2008 INFINITI FX35 fuse

DAYTIME LIGHT SYSTEMLT-33
< SERVICE INFORMATION >
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 through 10A fuse [No. 12, located in fuse block (J/B)]
 to combination meter terminal 7,
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38.
Ground is supplied
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85,
 to BCM terminals 49 and 52
 through grounds M35, M45 and M85.
DAYTIME LIGHT OPERATION
Once the parking brake is turned OFF after ignition swit ch ON, if the lighting switch is turned OFF while engine
running, the BCM sends daytime light r equest signal (ON) through CAN communication.
When receiving daytime light request signal (ON), combi nation meter turns ON daytime light relay. And power
is supplied
 through daytime light relay terminal 1
 to combination meter terminal 10,
 through daytime light relay terminal 3
 to parking lamp RH and LH terminals 1.
Ground is supplied
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85,
 to parking lamp RH and LH terminals 3
 through grounds E21, E50 and E51.
With power and grounds supplied, the daytime light lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
AUTO LIGHT OPERATION
Refer to LT-47, "System Description".
CAN Communication System DescriptionINFOID:0000000001328293
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328294
Refer to LAN-43, "CAN System Specification Chart".
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DAYTIME LIGHT SYSTEMLT-41
< SERVICE INFORMATION >
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O PHow to Proceed with Trouble DiagnosisINFOID:0000000001328298
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-32, "
System Description".
3. Perform Preliminary Check. Refer to LT-41, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does daytime light lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328299
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT-35, "
Wiring Diagram - DTRL -".
OK or NG
35 W/G Combination
switch output 2 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING (Operates only PASSING
switch)
Approx. 1.2 V
38 W/L Ignition switch
(ON)
ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply
OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
Unit Power source Fuse and fusible link No.
BCM Battery M
22
Ignition switch ON or START position 1
Daytime light relay Battery 36
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-42
< SERVICE INFORMATION >
DAYTIME LIGHT SYSTEM
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
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 >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
INSPECTION PARKING BRAKE SWITCH CIRCUIT
1.CHECK BRAKE INDICATOR
1. Turn ignition switch ON.
2. When a parking brake is made ON/OFF, it checks w hether brake indicator lamp of combination meter
lights up / puts out the light.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK PARKING BRAKE SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect parking brake switch connector.
3. Turn ignition switch ON.
4. Check voltage between parking brake switch harness connector E207 terminal 1 and ground.
OK or NG
OK >> Replace parking brake switch.
NG >> GO TO 3.
3.CHECK PARKING BRAKE SWITCH CIRCUIT
(+) (-)Ignition switch position
BCM con- nector Te r m i n a l O F F O N
M3 38 GroundApprox. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM connector Terminal
GroundContinuity
M4 49
Ye s
52
SKIA5294E
1 – Ground : Battery voltage.
SKIA5876E
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AUTO LIGHT SYSTEMLT-55
< SERVICE INFORMATION >
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5. Does auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328316
SETTING CHANGE FUNCTIONS
Sensitivity of auto light system can be adjusted using CONSULT-III. Refer to LT-56, "CONSULT-III Functions
(BCM)".
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 5 0 , "Wiring Diagram - AUTO/L -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
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 >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 71
72
74
76
86
(+)
(-)Ignition switch position
BCM con- nector Te r m i n a l O F F A C C O N
M3 11
Ground Approx. 0 V
Battery volt-
age Battery volt-
age
38 Approx. 0 V Approx. 0 V Battery volt-
age
M4 42
Battery volt-
age Battery volt-
age Battery volt-
age
55 Battery volt-
age Battery volt-
age Battery volt-
age
PKIA5204E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-66
< SERVICE INFORMATION >
FRONT FOG LAMP
FRONT FOG LAMP
Component Parts and Harness Connector LocationINFOID:0000000001328327
System DescriptionINFOID:0000000001328328
Control of the front fog lamps is dependent upon the position of the combination switch (lighting switch). The
lighting switch must be in the 2ND position or AUTO position (headlamp is ON) for front fog lamp opera-
tion.When the lighting switch is placed in the front fog lamp on position the BCM (body control module)
receives input signal requesting the front fog lamps to illuminate. When the headlamps are illuminated, this
input signal is communicated to the IPDM E/R (inte lligent power distribution module engine room) through the
CAN communication lines. The CPU (central processing unit) located in the IPDM E/R controls the front fog
lamp relay coil. When activated, this relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times
 to ignition relay, located in IP DM E/R, from battery direct,
 through 15A fuse (No. 88, located in IPDM E/R)
 to front fog lamp relay, located in IPDM E/R,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 10A fuse (No. 71, located in IPDM E/R)
 to CPU located in IPDM E/R.
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42.
When ignition switch is in ON or START position, power is supplied
 to ignition relay (located IPDM E/R)
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38.
When ignition switch is in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
PKIB3475E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FOG LAMPLT-71
< SERVICE INFORMATION >
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How to Proceed with Trouble DiagnosisINFOID:0000000001328334
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-66, "
System Description".
3. Perform Preliminary Check. Refer to LT-71, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does front fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328335
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT-68, "
Wiring Diagram - F/FOG -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
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No. Wire
color Signal
name Measuring condition
Reference value
Ignition
switch Operation or condition
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 88
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LT-78
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
TURN SIGNAL AND HAZARD WARNING LAMPS
Component Parts and Harn ess Connector LocationINFOID:0000000001328343
System DescriptionINFOID:0000000001328344
OUTLINE
Power is supplied at all times
 through 50A fusible link (letter M, located in fuse and fusible link block)
 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8.
 through 10A fuse [No. 20, located in fuse block (J/B)]
 to rear combination lamp control unit terminal 1.
When ignition switch is in ON or START position, power is supplied
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM (body control module) terminal 38,
 through 10A fuse [No. 14, located in fuse block (J/B)]
 to combination meter terminal 7.
When ignition switch is in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
 to rear combination lamp control unit terminal 7
 through grounds E21, E50 and E51,
 to BCM terminals 49 and 52, and
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85.
TURN SIGNAL OPERATION
LH Turn Signal Lamp
PKIC9692E
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LT-88
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
How to Proceed with Trouble Diagnosis
INFOID:0000000001328351
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-78, "
System Description".
3. Perform preliminary check. Refer to LT-88, "
Preliminary Check".
4. Check symptom and repair or r eplace the cause of malfunction.
5. Do turn signal and hazard warning lamps operate no rmally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328352
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 8 2 , "Wiring Diagram - TURN -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
11 WRear combination lamp drive sig-
nal (LH) —Lighting switch OFF,
brake pedal released
(stop lamp switch OFF),
turn signal switch OFF,
hazard switch OFF
Approx. 0 V
Lighting switch 1ST Approx. 0.3 V
Brake pedal depressed
(stop lamp switch ON) Battery voltage
ON Turn signal switch LH
Approx. 3.7 V
— Hazard switch ON
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No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or conditionPKIC9670E
PKIC9671E
Unit Power source Fuse and fusible link No.
BCM Battery
M
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Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
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