2007 INFINITI FX35 diagram

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
A
B
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

LAN-4
[CAN FUNDAMENTAL]
SYSTEM DESCRIPTION
Revision: 2006 July 2007 FX35/FX45
SYSTEM DESCRIPTIONPFP:00000
CAN Communication SystemNKS004MA

CAN communication is a multiplex communication system. This enables the system to transmit and
receive large quantities of data at high speed by connecting control units with two communication lines
(CAN-H and CAN-L).

Control units on the CAN network transmit signals using the CAN communication control circuit. They
receive only necessary signals from other control units to operate various functions.

CAN communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
SYSTEM DIAGRAM
Each control unit passes an electric current to the termination circuits when transmitting CAN communication
signal. The termination circuits produce an electrical potential difference between CAN-H and CAN-L. CAN
communication system transmits and receives CAN communication signals by the potential difference.
SKIB8887E
Component Description
Main line CAN communication line between splices
Branch line CAN communication line between splice and a control unit
Splice A point connecting a branch line with a main line
Termination circuit Refer to LAN-5, "
CAN COMMUNICATION CONTROL CIRCUIT" .

LAN-6
[CAN FUNDAMENTAL]
SYSTEM DESCRIPTION
Revision: 2006 July 2007 FX35/FX45
Diag on CANNKS004MB
DESCRIPTION
“Diag on CAN” is a diagnosis using CAN communication instead of previous DDL1 and DDL2 communication
line, between control unit and diagnosis unit.
SYSTEM DIAGRAM
SKIB8714E
Name Harness Description
DDL1 Tx
Rx It is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
DDL2 K-LINE It is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
Diag on CAN CAN-H
CAN-L It is used for trouble diagnosis and control.

TROUBLE DIAGNOSES WORK FLOW LAN-15
[CAN FUNDAMENTAL]
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M A
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LAN
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSES WORK FLOWPFP:00004
Information Needed for Trouble DiagnosisNKS004MG
CAN communication system performs trouble diagnosis with the following tools.
How to Use CAN Communication Signal ChartNKS004MH
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
Tool Usage
Interview sheet For filling in vehicle information and interview with customer.
Data sheet For attaching CONSULT-II data or on-board diagnosis data.
Diagnosis sheet For detecting the root cause. (Diagnosis sheet includes system diagram for every CAN system
type)
SELECT SYSTEM
(CONSULT-II)
For checking the condition of control units and the status of CAN communication.
SELF-DIAG RESULTS
(CONSULT-II)
CAN DIAG SUPPORT MNTR
(CONSULT-II)
CAN communication signal
chart For converting information received from a customer into CAN communication signal transmission
and reception. This information can be used to judge whether a circuit between control units is nor-
mal or abnormal.
Abbreviation list For checking abbreviations in CAN communication signal chart and diagnosis sheet.
SKIB8715E

TROUBLE DIAGNOSIS LAN-61
[CAN]
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G H
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M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — CAN —NKS004NR
TKWM4957E

TROUBLE DIAGNOSIS LAN-81
[CAN]
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M A
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LAN
Revision: 2006 July 2007 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AWD control unit.
2. Check the resistance between the AWD control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the AWD control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AWD control unit. Refer to TF-16, "
Circuit Diagram" .
OK or NG
OK >>
Present error: Replace the AWD control unit. Refer to TF-39, "AWD CONTROL UNIT" .

Past error: Error was detected in the AWD control unit branch line.
NG >> Repair the power supply and the ground circuit.
Display Control Unit Branch Line CircuitNKS004O4
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the display control unit for damage, bend and loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of display control unit.
2. Check the resistance between the display control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the display control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the display control unit. Refer to AV- 5 6 , "
Schematic — INF/D
—" .
OK or NG
OK >>
Present error: Replace the display control unit. Refer to AV- 9 2 , "Removal and Installation of
Display Control Unit" .

Past error: Error was detected in the display control unit branch line.
NG >> Repair the power supply and the ground circuit.
AWD control unit harness connector Resistance ( Ω)
Connector No. Terminal No.
M92 8 16 Approx. 54 – 66
Display control unit harness connector Resistance ( Ω)
Connector No. Terminal No.
M76 25 26 Approx. 54 – 66

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
C
D E
F
G H
I
J
L
M
SECTION LT
A
B
LT
Revision: 2006 July 2007 FX35/FX45
LIGHTING SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 5
General Precautions for Service Operations ....... ..... 5
HEADLAMP - XENON TYPE - .............................. ..... 6
Component Parts and Harness Connector Location ..... 6
System Description ............................................. ..... 6
OUTLINE .......................................................... ..... 6
HEADLAMP OPERATION ............................... ..... 7
COMBINATION SWITCH READING FUNCTION ..... 8
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 8
AUTO LIGHT OPERATION (IF EQUIPPED) .... ..... 8
VEHICLE SECURITY SYSTEM ....................... ..... 8
XENON HEADLAMP ........................................ ..... 8
CAN Communication System Description ........... ..... 8
CAN Communication Unit ................................... ..... 8
Schematic ........................................................... ..... 9
Wiring Diagram — H/LAMP — ............................ ... 10
Terminals and Reference Values for BCM .......... ... 14
Terminals and Reference Values for IPDM E/R .. ... 16
How to Proceed With Trouble Diagnosis ............. ... 16
Preliminary Check ............................................... ... 16
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 16
CONSULT-II Functions (BCM) ............................ ... 18
CONSULT-II BASIC OPERATION .................... ... 18
WORK SUPPORT ............................................ ... 18
DATA MONITOR .............................................. ... 18
ACTIVE TEST .................................................. ... 20
CONSULT-II Functions (IPDM E/R) .................... ... 20
CONSULT-II BASIC OPERATION .................... ... 20
DATA MONITOR .............................................. ... 20
ACTIVE TEST .................................................. ... 21
Headlamp Does Not Change To High Beam (Both
Sides) .................................................................. ... 22
Headlamp Does Not Change To High Beam (One
Side) .................................................................... ... 24
Headlamp Low Beam Does Not Illuminate (Both
Sides) .................................................................. ... 25 Headlamp Low Beam Does Not Illuminate (One
Side) .................................................................... ... 27
Headlamp RH Low Beam and High Beam Does Not
Illuminate ............................................................. ... 29
Headlamp LH Low Beam and High Beam Does Not
Illuminate ............................................................. ... 29
Headlamps Do Not Turn OFF .............................. ... 30
General Information for Xenon Headlamp Trouble
Diagnosis ............................................................. ... 32
Caution: ............................................................... ... 32
Xenon Headlamp Trouble Diagnosis ................... ... 32
Aiming Adjustment ............................................... ... 33
PREPARATION BEFORE ADJUSTING ........... ... 33
LOW BEAM AND HIGH BEAM ........................ ... 33
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ......... ... 34
Bulb Replacement ............................................... ... 34
HEADLAMP HIGH/LOW BEAM ....................... ... 34
DAYTIME/PARKING LAMP .............................. ... 35
FRONT TURN SIGNAL LAMP ......................... ... 35
FRONT SIDE MARKER LAMP ........................ ... 35
Removal and Installation ..................................... ... 35
REMOVAL ........................................................ ... 35
INSTALLATION ................................................ ... 36
Disassembly and Assembly ................................. ... 36
DISASSEMBLY ................................................ ... 36
ASSEMBLY ...................................................... ... 36
DAYTIME LIGHT SYSTEM .................................... ... 38
Component Parts and Harness Connector Location ... 38
System Description .............................................. ... 38
OUTLINE .......................................................... ... 38
DAYTIME LIGHT OPERATION ........................ ... 39
COMBINATION SWITCH READING FUNCTION ... 39
AUTO LIGHT OPERATION .............................. ... 39
CAN Communication System Description ........... ... 39
CAN Communication Unit .................................... ... 39
Schematic ............................................................ ... 40
Wiring Diagram — DTRL — ................................ ... 41
Terminals and Reference Values for BCM ........... ... 45
How to Proceed With Trouble Diagnosis ............. ... 47

LT-2Revision: 2006 July 2007 FX35/FX45
Preliminary Check ...............................................
... 48
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 48
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT ................................................................. ... 49
CONSULT-II Functions (BCM) ............................. ... 50
CONSULT-II BASIC OPERATION .................... ... 50
DATA MONITOR ............................................... ... 50
ACTIVE TEST .................................................. ... 51
Daytime Light Control Does Not Operate Properly ... 52
Aiming Adjustment ............................................... ... 54
Bulb Replacement ............................................... ... 54
Removal and Installation ..................................... ... 54
Disassembly and Assembly ................................. ... 54
AUTO LIGHT SYSTEM .......................................... ... 55
Component Parts and Harness Connector Location ... 55
System Description .............................................. ... 55
OUTLINE .......................................................... ... 55
COMBINATION SWITCH READING FUNCTION ... 56
DELAY TIMER FUNCTION .............................. ... 56
CAN Communication System Description ........... ... 56
CAN Communication Unit .................................... ... 56
Major Components and Functions ....................... ... 56
Schematic ............................................................ ... 57
Wiring Diagram — AUTO/L — ............................. ... 58
Terminals and Reference Values for BCM ........... ... 61
Terminals and Reference Values for IPDM E/R ... ... 63
How to Proceed With Trouble Diagnosis ............. ... 63
Preliminary Check ............................................... ... 64
SETTING CHANGE FUNCTIONS .................... ... 64
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 64
CONSULT-II Functions (BCM) ............................. ... 66
CONSULT-II BASIC OPERATION .................... ... 66
WORK SUPPORT ............................................ ... 66
DATA MONITOR ............................................... ... 66
ACTIVE TEST .................................................. ... 68
CONSULT-II Functions (IPDM E/R) ..................... ... 68
CONSULT-II BASIC OPERATION .................... ... 68
DATA MONITOR ............................................... ... 68
ACTIVE TEST .................................................. ... 69
Symptom Chart .................................................... ... 69
Lighting Switch Inspection ................................... ... 70
Optical sensor System Inspection ....................... ... 70
Removal and Installation of Optical Sensor ......... ... 72
REMOVAL ........................................................ ... 72
INSTALLATION ................................................. ... 72
HEADLAMP AIMING CONTROL ........................... ... 73
Schematic ............................................................ ... 73
Wiring Diagram — H/AIM — ................................ ... 74
Removal and Installation ..................................... ... 77
REMOVAL ........................................................ ... 77
INSTALLATION ................................................. ... 77
Switch Circuit Inspection ..................................... ... 77
FRONT FOG LAMP ............................................... ... 78
Component Parts and Harness Connector Location ... 78
System Description .............................................. ... 78
OUTLINE .......................................................... ... 78 FRONT FOG LAMP OPERATION ....................
... 79
COMBINATION SWITCH READING FUNCTION ... 79
EXTERIOR LAMP BATTERY SAVER CONTROL ... 79
CAN Communication System Description ........... ... 79
CAN Communication Unit .................................... ... 79
Wiring Diagram — F/FOG — ............................... ... 80
Terminals and Reference Values for BCM ........... ... 82
Terminals and Reference Values for IPDM E/R ... ... 83
How to Proceed With Trouble Diagnosis ............. ... 83
Preliminary Check ................................................ ... 83
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. ... 83
CONSULT-II Functions (BCM) ............................. ... 84
CONSULT-II Functions (IPDM E/R) ..................... ... 84
Front Fog Lamps Do Not Illuminate (Both Sides) ... 85
Front Fog Lamp Does Not Illuminate (One Side) . ... 87
Aiming Adjustment ............................................... ... 88
Bulb Replacement ................................................ ... 89
Removal and Installation ...................................... ... 89
REMOVAL ......................................................... ... 89
INSTALLATION ................................................. ... 89
TURN SIGNAL AND HAZARD WARNING LAMPS ... 90
Component Parts and Harness Connector Location ... 90
System Description .............................................. ... 90
OUTLINE .......................................................... ... 90
TURN SIGNAL OPERATION ............................ ... 91
HAZARD LAMP OPERATION .......................... ... 91
REMOTE CONTROL ENTRY SYSTEM OPER-
ATION ............................................................... ... 92
COMBINATION SWITCH READING FUNCTION ... 92
CAN Communication System Description ........... ... 92
CAN Communication Unit .................................... ... 92
Schematic ............................................................ ... 93
Wiring Diagram — TURN — ................................ ... 94
Terminals and Reference Values for BCM ........... ... 97
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... ... 98
How to Proceed With Trouble Diagnosis ............. .100
Preliminary Check ................................................ .100
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. .100
CONSULT-II Functions (BCM) ............................. .102
CONSULT-II BASIC OPERATION .................... .102
DATA MONITOR ............................................... .102
ACTIVE TEST ................................................... .102
Turn Signal Lamps Do Not Operate ..................... .103
Rear Turn Signal Lamp Does Not Operate .......... .105
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ........................................... .106
Bulb Replacement (Front Turn Signal Lamp) ....... .108
Bulb Replacement (Rear Turn Signal Lamp) ....... .108
Removal and Installation of Front Turn Signal Lamp .108
Removal and Installation of Rear Turn Signal Lamp .108
Removal and Installation of Rear Combination
Lamp Control Unit ................................................ .108
REMOVAL ......................................................... .108
INSTALLATION ................................................. .108