2007 INFINITI FX35 air condition

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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LAN
Revision: 2006 July 2007 FX35/FX45
LAN SYSTEM
CAN FUNDAMENTAL
PRECAUTIONS .......................................................... 3
Precautions When Using CONSULT-II ................ ..... 3
Precautions for Trouble Diagnosis ...................... ..... 3
Precautions for Harness Repair .......................... ..... 3
SYSTEM DESCRIPTION ....................................... ..... 4
CAN Communication System .............................. ..... 4
SYSTEM DIAGRAM ......................................... ..... 4
CAN COMMUNICATION CONTROL CIRCUIT ..... 5
Diag on CAN ....................................................... ..... 6
DESCRIPTION ................................................. ..... 6
SYSTEM DIAGRAM ......................................... ..... 6
TROUBLE DIAGNOSIS ......................................... ..... 7
Condition of Error Detection ................................ ..... 7
CAN COMMUNICATION SYSTEM ERROR .... ..... 7
WHEN INDICATED “U1000” OR “U1001” IS INDI-
CATED EVEN THOUGH CAN COMMUNICA-
TION SYSTEM IS NORMAL ............................ ..... 7
Symptom When Error Occurs in CAN Communi-
cation System ...................................................... ..... 8
ERROR EXAMPLE .......................................... ..... 8
Self-Diagnosis ..................................................... ... 12
CAN Diagnostic Support Monitor ........................ ... 13
MONITOR ITEM (CONSULT-II) ....................... ... 13
MONITOR ITEM (ON-BOARD DIAGNOSIS) ... ... 14
TROUBLE DIAGNOSES WORK FLOW ............... ... 15
Information Needed for Trouble Diagnosis .......... ... 15
How to Use CAN Communication Signal Chart .. ... 15
Trouble Diagnosis Flow Chart ............................. ... 16
Trouble Diagnosis Procedure .............................. ... 17
INTERVIEW WITH CUSTOMER ...................... ... 17
INSPECTION OF VEHICLE CONDITION ........ ... 18
CHECK OF CAN SYSTEM TYPE (HOW TO USE
CAN SYSTEM TYPE SPECIFICATION CHART) ... 19
CREATE INTERVIEW SHEET ......................... ... 21
CREATE DATA SHEET .................................... ... 22
CREATE DIAGNOSIS SHEET ......................... ... 24
DETECT THE ROOT CAUSE .......................... ... 25
CAN
INDEX FOR DTC .................................................... ... 40
DTC No. Index ..................................................... ... 40
HOW TO USE THIS SECTION .............................. ... 41
Caution ................................................................ ... 41
Abbreviation List .................................................. ... 41
PRECAUTIONS ..................................................... ... 42
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. ... 42
Precautions When Using CONSULT-II ................ ... 42
Precautions for Trouble Diagnosis ...................... ... 42
Precautions for Harness Repair .......................... ... 42
TROUBLE DIAGNOSIS ......................................... ... 44
CAN Diagnostic Support Monitor ......................... ... 44
MONITOR ITEM LIST (CONSULT-II) ............... ... 44
MONITOR ITEM LIST (ON-BOARD DIAGNO-
SIS) .................................................................. ... 48
CAN System Specification Chart ......................... ... 49
VEHICLE EQUIPMENT IDENTIFICATION
INFORMATION ................................................. ... 49
CAN Communication Signal Chart ...................... ... 50
TYPE 1/TYPE 2 ................................................ ... 50
TYPE 3 ............................................................. ... 52
TYPE 4/TYPE 5 ................................................ ... 54
TYPE 6 ............................................................. ... 57
Schematic ............................................................ ... 60
Wiring Diagram — CAN — .................................. ... 61
Interview Sheet .................................................... ... 64
Data Sheet ........................................................... ... 65
CONSULT-II DATA ATTACHMENT SHEET ..... ... 65
ON-BOARD DIAGNOSIS COPY SHEET ......... ... 68
CAN System (Type 1) .......................................... ... 69
DIAGNOSIS SHEET ........................................ ... 69
CAN System (Type 2) .......................................... ... 70
DIAGNOSIS SHEET ........................................ ... 70
CAN System (Type 3) .......................................... ... 71
DIAGNOSIS SHEET ........................................ ... 71
CAN System (Type 4) .......................................... ... 72
DIAGNOSIS SHEET ........................................ ... 72

LT-16
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS002VC
How to Proceed With Trouble DiagnosisNKS002VD
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 6 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 6 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS002VE
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 1 0 , "
Wiring Diagram — H/LAMP —" .
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" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
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 72
74
76
86

DAYTIME LIGHT SYSTEM LT-47
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Revision: 2006 July 2007 FX35/FX45How to Proceed With Trouble DiagnosisNKS002W3
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 3 8 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 4 8 , "
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
35 W/G Combination
switch output 2 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent 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

AUTO LIGHT SYSTEM LT-63
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS002WJ
How to Proceed With Trouble DiagnosisNKS002WK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 5 5 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 6 4 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction. Refer to LT- 6 9 , "
Symptom Chart" .
5. Does auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Terminal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
22 R Parking, license plate, side
marker and tail lamps ON
Lighting switch 1ST
position OFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H—— —
49 R CAN − L—— —
60 B Ground ON — Approx. 0 V

FRONT FOG LAMP LT-83
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS002X2
How to Proceed With Trouble DiagnosisNKS002X3
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 7 8 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 8 3 , "
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 CheckNKS002X4
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 8 0 , "
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" .
Termi-
nal
No. Wire
color Signal
name Measuring condition
Reference value
Ignition
switch Operation or condition
36 W Front fog
lamp (RH) ON
Lighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON. OFF Approx. 0 V
ON Battery voltage
37 SB Front fog
lamp (LH) ON
Lighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON. OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
BCM Battery
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Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 88

LT-100
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 July 2007 FX35/FX45
How to Proceed With Trouble DiagnosisNKS002XJ
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 9 0 , "
System Description" .
3. Perform preliminary check. Refer to LT- 1 0 0 , "
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
Preliminary CheckNKS002XK
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
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" .
11 W Rear 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

LT-106
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 July 2007 FX35/FX45
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.
Hazard Warning Lamp Does Not Operate But Turn Signal Lamp OperateNKS002XO
1. CHECK HAZARD SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “FLASHER” data monitor to
make sure “HAZARD SW” turns ON-OFF linked with operation of
hazard switch.
Without CONSULT-II
Check voltage between BCM harness connector M3 terminal 29 and
ground.
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> GO TO 2. 11 – 3 : Continuity should exist.
10 – 4 : Continuity should exist.
9 – 3 : Continuity should exist.
8 – 4 : Continuity should exist.
SKIA5910E
When hazard switch is ON position : HAZARD SW ON
PKIA7601E
(+) (-) Condition Voltage
BCM con-
nector Terminal
M3 29 Ground Hazard switch is ON Approx. 0 V
Hazard switch is OFF Battery voltage
SKIA5911E

TURN SIGNAL AND HAZARD WARNING LAMPS LT-107
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Revision: 2006 July 2007 FX35/FX45
2. CHECK HAZARD SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and hazard switch connector.
3. Check continuity BCM harness connector M3 terminal 29 and hazard switch harness connector M51 terminal 2.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND
Check continuity hazard switch harness connector M51 terminal 1
and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK HAZARD SWITCH
Check continuity hazard switch.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after setting the connector again. Refer to BCS-14, "
Removal
and Installation of BCM" .
NG >> Replace hazard switch. 29 – 2 : Continuity should exist.
SKIA5912E
1 – Ground : Continuity should exist.
SKIA5913E
Te r m i n a l
Condition Continuity
Hazard switch
12 Hazard switch is ON Yes
Hazard switch is OFF No
PKIA5221E