2008 INFINITI FX35 power supply

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
Te r m i -
nal
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
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TURN SIGNAL AND HAZARD WARNING LAMPSLT-89
< SERVICE INFORMATION >
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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.
CONSULT-III Functions (BCM)INFOID:0000000001328353
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
DATA MONITOR
Display Item List
(+)
(-)Ignition switch position
OFF ACC ON
BCM con-
nector Te r m i n a l
M3 11
Ground Approx. 0 V
Battery
voltage Battery
voltage
38 Approx. 0 V Approx. 0 V Battery
voltage
M4 42
Battery
voltage Battery
voltage Battery
voltage
55 Battery
voltage Battery
voltage Battery
voltage
PKIA5204E
BCM connector Terminal
GroundContinuity
M4 49
Ye s
52
SKIA5294E
BCM diagnosis part Diagnosis mode Description
FLASHER DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending driving signal to them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN posi tion (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
HAZARD SW “ON/OFF” Displays “Hazard ON (ON)/Hazard OFF (OFF)” status, determined from hazard switch signal.
TURN SIGNAL R “ON/OFF” Displays “Turn ri ght (ON)/Other (OFF)” status, determined from lighting switch signal.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TURN SIGNAL AND HAZARD WARNING LAMPSLT-93
< SERVICE INFORMATION >
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1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal 45 and rear combination lamp control unit harness connector
B65 terminal 4.
3. Check continuity between BCM harness connector M4 terminal 46 and rear combination lamp control unit harness connector
B65 terminal 5.
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 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 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK REAR COMBINATION LAMPS CIRCUIT
1. Disconnect rear combination lamp RH and LH connectors.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 11 and rear combination lamp
LH harness connector B57 terminal 3.
3. Check continuity between rear combination lamp control unit harness connector B65 terminal 10 and rear combination lamp
LH harness connector B57 terminal 4.
4. Check continuity between rear combination lamp control unit harness connector B65 terminal 9 and rear
combination lamp RH harness connector B219 terminal 3. 45 – 4 : Continui
ty should exist.
46 – 5 : Continuity should exist.
SKIA5909E
1 – Ground : Battery voltage.
SKIA5907E
7 – Ground : Continuity should exist.
SKIA5908E
11 – 3 : Continuity should exist.
10 – 4 : Continui ty should exist.
9 – 3 : Continui ty should exist.
SKIA5910E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

COMBINATION SWITCHLT-103
< SERVICE INFORMATION >
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CONSULT-III Functions (BCM)INFOID:0000000001328367
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
35 W/GCombination
switch output 2 ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial po-
sition 4) OFF
Approx. 7.2 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING (Operates only PASSING switch)
 Front wiper switch INT
 Front wiper switch HI
Approx. 1.2 V
36 W/R Combination
switch output 1 ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial po-
sition 4) OFF
Approx. 7.2 V
Any of the conditions below
 Turn signal switch to right
 Turn signal switch to left
 Front wiper switch MIST
 Front wiper switch LO
 Front washer 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 -
mi-nal
No. Wire
color Signal name Measuring condition
Reference value
Igni-
tion
switch Operation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
BCM diagnosis part Diagnosis mode Description
COMB SW DATA MONITOR Displays BCM input data in real time.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

STOP LAMPLT-113
< SERVICE INFORMATION >
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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 problem before installing new fuse.
3.CHECK INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between rear combination lamp control unit har- ness connector and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> GO TO 4.
4.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector E210 terminal 1 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 and rear combi nation lamp control unit harness
connector B65 terminal 3.
OK or NG
OK >> Replace stop lamp switch.
NG >> Repair harness or connector.
6.CHECK POWER SUPPLY CIRCUIT
(+) (-) Condition Voltage
BCM con-
nector Te r m i n a l
B65 3 Ground Stop lamp switch is ON.
(Depressed) Battery
voltage
Stop lamp switch is OFF. (Released) Approx. 0 V
PKIA5233E
1 – Ground : Battery voltage.
PKIA5234E
2 – 3 : Continuity should exist.
PKIA5235E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-127
< SERVICE INFORMATION >
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Terminal and Reference Value for IPDM E/RINFOID:0000000001328389
Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY Combination
switch input 5
ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Lighting switch 1ST
Approx. 1.0 V
11 L G Ignition switch
(ACC)
ACC — Battery voltage
33 G Combination
switch output 4 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Lighting switch 1ST
(The same result with
lighting switch 2ND) 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
PKIB4959J
PKIB4960J
PKIB4958J
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
22 R Parking, license plate,
side marker, and tail
lamps ON
Lighting switch
1ST position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-128
< SERVICE INFORMATION >
PARKING, LICENSE PLATE AND TAIL LAMPS
Terminal and Reference Value for Re ar Combination Lamp Control Unit
INFOID:0000000001328390
Refer to LT-86, "Terminal and Reference Value for Rear Combination Lamp Control Unit".
How to Proceed with Trouble DiagnosisINFOID:0000000001328391
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-118, "
System Description".
3. Perform Preliminary Check. Refer to LT-128, "
Preliminary Check".
4. Check symptom and repair or r eplace the cause of malfunction.
5. Do parking, license plate, side marker and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328392
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 1 2 2 , "Wiring Diagram - TAIL/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
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
Te r m i n a l
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 71
Rear combination lamp control unit Battery 20
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-134
< SERVICE INFORMATION >
PARKING, LICENSE PLATE AND TAIL LAMPS
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between rear combination lamp control unit har- ness connector B65 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK GROUND CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 7 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK REAR COMBINATION LAMPS CIRCUIT
1. Disconnect rear combination lamp RH and LH connectors.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 11 and rear combination lamp
LH harness connector B57 terminal 3.
3. Check continuity between rear combination lamp control unit harness connector B65 terminal 10 and rear combination lamp
LH harness connector B57 terminal 4.
4. Check continuity between rear combination lamp control unit harness connector B65 terminal 9 and rear combination lamp RH harness connector B219 terminal 3.
5. Check continuity between rear combination lamp control unit harness connector B65 terminal 8 and rear combination lamp RH harness connector B219 terminal 4.
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.
Parking, License Plate, Side Maker and Tail Lamps Do Not Turn OFF (After Approx. 10
1 – Ground : Battery voltage.
PKIB3526E
7 – Ground : Continuity should exist.
SKIA5908E
11 – 3 : Continuity should exist.
10 – 4 : Continuity should exist.
9 – 3 : Continuity should exist.
8 – 4 : Continuity should exist.
SKIA5910E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C