electrical INFINITI FX35 2004 Service Manual

ABCDEFGHIJKMLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: July 2003
Revision: November 2004

ACC-2
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00A37
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

ACCELERATOR CONTROL SYSTEM
ACC-3
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ACC
Revision: 2004 November 2004 FX35/FX45
ACCELERATOR CONTROL SYSTEMPFP:18005
Removal and InstallationABS005ZA
REMOVAL
1. Disconnect accelerator pedal position sensor harness connector.
2. Loosen nuts, and remove accelerator pedal assembly.
CAUTION:

Do not disassemble accelerator pedal assembly. Do not remove accelerator pedal position sen-
sor from the accelerator pedal assembly.

Avoid impact from dropping etc. during handling.

Be careful to keep the accelerator pedal assembly away from water.
INSTALLATION
Install in the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check that the accelerator pedal moves smoothly within the whole operation range.

Make sure that accelerator pedal securely returns to the original position.

For the electrical inspection of accelerator pedal position sensor, refer to EC-555, "DTC P2122, P2123
APP SENSOR" (VQ35DE), EC-562, "DTC P2127, P2128 APP SENSOR" (VQ35DE) and EC-576, "DTC
P2138 APP SENSOR" (VQ35DE) or EC-1225, "DTC P2122, P2123 APP SENSOR" (VK45DE), EC-
1232, "DTC P2127, P2128 APP SENSOR" (VK45DE) and EC-1246, "DTC P2138 APP SENSOR"
(VK45DE).
CAUTION:
When harness connector of accelerator pedal position sensor is disconnected, perform “Acceler-
ator Pedal Released Position Learning”. Refer to EC-49, "
Accelerator Pedal Released Position
Learning" (VQ35DE) or EC-698, "Accelerator Pedal Released Position Learning" (VK45DE).
1. Accelerator pedal assembly
SBIA0332E

ACS-1
AUTO CRUISE CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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SECTION ACS
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ACS
Revision: 2004 November 2004 FX35/FX45
AUTO CRUISE CONTROL SYSTEM
ASCD
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..... 3
Description ............................................................... 3
ICC
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for ICC System Service ........................ 4
Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Special Service Tool ................................................. 5
DESCRIPTION ............................................................ 6
Outline ...................................................................... 6
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE ................................................................... 6
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ................................................. 6
BRAKE ASSIST (WITH PREVIEW FUNCTION) ..... 6
System Diagram ....................................................... 6
Components Description .......................................... 7
CAN Communication ................................................ 7
CAN COMMUNICATION UNIT ............................. 7
Switch Operation ...................................................... 7
ICC System Display ................................................. 8
ACTION TEST ............................................................ 9
ICC System Running Test ........................................ 9
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE ................................................................... 9
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ............................................... 10
LASER BEAM AIMING ADJUSTMENT ................... 12
Outline .................................................................... 12
Preparation ............................................................. 12
Outline of Adjustment Procedure ........................... 12
Setting the ICC Target Board ................................. 12
ADJUSTING HEIGHT OF THE TARGET ............ 12
ADJUSTING THE RIGHT-LEFT POSITION OF THE TARGET ...................................................... 13
SETTING THE TARGET ..................................... 13
Aiming Adjustment .................................................. 14
CHECK AFTER THE ADJUSTMENT .................. 17
ELECTRICAL UNITS LOCATION ............................ 18
Component Parts and Harness Connector Location ... 18
WIRING DIAGRAM ................................................... 19
Schematic ............................................................... 19
Wiring Diagram — ICC — ...................................... 20
TERMINALS AND REFERENCE VALUE ................. 27
Terminals and Reference Value for ICC Unit .......... 27
Terminals and Reference Value for ICC Sensor ..... 28
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION .......................................................................... 29
Work Flow ............................................................... 29
CONSULT-II Function ............................................. 30
DESCRIPTION .................................................... 30
CONSULT-II INSPECTION PROCEDURE .......... 30
WORK SUPPORT ............................................... 31
SELF-DIAGNOSTIC RESULTS ........................... 31
DATA MONITOR ................................................. 32
ACTIVE TEST ..................................................... 33
Self-Diagnostic Function ......................................... 35
WITH CONSULT-II .............................................. 35
WITHOUT CONSULT-II ....................................... 36
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY
WILL NOT RUN. .................................................. 37
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 40
Diagnostic Trouble Code (DTC) Chart ................... 40
DTC 11 CONTROL UNIT ....................................... 41
DTC 20 CAN COMM CIRCUIT ............................... 41
DTC 31 POWER SUPPLY CIR, DTC 34 POWER
SUPPLY CIR 2 ....................................................... 42
DTC 41 VHCL SPEED SE CIRC ............................ 42
DTC 43 ABS/TCS/VDC CIRC ................................ 43
DTC 45 BRAKE SW/STOP L SW ........................... 43
DTC 46 OPERATION SW CIRC ............................. 45
DTC 61 PRESS SEN CIRCUIT .............................. 46
DTC 62 BOOSTER SOL/V CIRCUIT ..................... 47

ACS-2Revision: 2004 November 2004 FX35/FX45DTC 63 RELEASE SW CIRCUIT ........................... 48
DTC 65 PRESSURE CONTROL ............................ 49
DTC 74 LASER BEAM OFF CNTR ........................ 49
DTC 90 STOP LAMP RLY FIX ............................... 50
DTC 92 ECM CIRCUIT ........................................... 54
DTC 96 NP RANGE ............................................... 55
DTC 97 AT CIRCUIT .............................................. 56
DTC 98 GEAR POSITION ...................................... 56
DTC 102 RADAR STAIN ........................................ 57
DTC 103 LASER SENSOR FAIL ............................ 58
DTC 104 LASER AIMING INCMP .......................... 58
DTC 107 LASER COMM FAIL ................................ 58
DTC 109 LASER HIGH TEMP ............................... 58
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 59
Symptom Chart ....................................................... 59
Symptom 1: ON/OFF Switch Does Not Switch ON*
1
. ON/OFF Switch Does Not Switch OFF*
2 . ............ 60
Symptom 2: The ICC System Cannot Be Set (ON/
OFF Switch Turns On/Off). ..................................... 60
Symptom 3: The ICC System Cannot Be Operated by the CANCEL Switch, ACCEL/RES Switch, or
DISTANCE Switch. ................................................. 61
Symptom 4: The ICC System Is Not Cancelled
When the Gear Is in Other Than ‘D’. ....................... 62
Symptom 5: Chime Does Not Sound. ..................... 62
Symptom 6: Driving Force Is Hunting. .................... 63
Symptom 7: The ICC System Frequently Cannot
Detect the Vehicle Ahead/The Detection Zone Is
Short. ...................................................................... 63
Symptom 8: The System Does Not Detect the Vehi-
cle Ahead at All. ...................................................... 63
ELECTRICAL COMPONENT INSPECTION ............. 65
ICC Steering Switch ................................................ 65
ICC Brake Switch and Stop Lamp Switch ............... 65
Booster Solenoid ..................................................... 65
Release Switch ....................................................... 66
REMOVAL AND INSTALLATION .............................. 67
ICC Unit .................................................................. 67
ICC Sensor ............................................................. 67
ICC Steering Switch ................................................ 67

ACS-4
[ICC]
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
[ICC]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007IE
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for ICC System ServiceAKS006Y8

Do not look straight into the laser beam discharger when adjusting laser beam aiming.

Turn the ON/OFF switch OFF in conditions similar to driving, suchlike Free rollers or Chassis dynamome-
ter.

Do not use the ICC sensor removing from vehicle, disassemble, or remodel the sensor.

Erase DTC when replacing parts of ICC system, then check the operation of ICC system after adjusting
laser beam aiming if necessary.
Wiring Diagrams and Trouble Diagnosis AKS006Y9
When you read wiring diagrams, refer to the followings:

Refer to GI-15, "How to Read Wiring Diagrams" in GI section

Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit in PG section
When you perform trouble diagnosis, refer to the followings:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section

Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section

ACS-18
[ICC]
ELECTRICAL UNITS LOCATION
Revision: 2004 November 2004 FX35/FX45
ELECTRICAL UNITS LOCATIONPFP:25230
Component Parts and Harness Connector LocationAKS006YN
SKIA6187E

ACS-30
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: 2004 November 2004 FX35/FX45
CONSULT-II FunctionAKS006YU
DESCRIPTION
CONSULT-II executes following functions by combining data reception and command transmission via com-
munication line from ICC unit.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
data link connector, which is located under LH dash panel near
the hood opener handle.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “ICC” on the selection screen.
If “ICC” is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
Test mode Function
WORK SUPPORT

Monitors aiming direction to facilitate laser beam aiming operation.

Indicates causes of automatic cancellation of the ICC system.
SELF-DIAGNOSTIC RESULTS Displays malfunctioning system memorized in ICC unit.
DATA MONITOR Displays real-time input/output data of ICC unit.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Enables operation check of electrical loads by sending driving signal to them.
ECU PART NUMBER Displays part number of ICC unit.
PBIB1503E
SKIA3098E
SKIA6193E

ELECTRICAL COMPONENT INSPECTION
ACS-65
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
ELECTRICAL COMPONENT INSPECTIONPFP:00000
ICC Steering SwitchAKS006ZX
1. Disconnect ICC steering switch.
2. Check resistance between M203 terminals 14 and 15 by
depressing each switch.
ICC Brake Switch and Stop Lamp SwitchAKS006ZY
Check each switch after adjusting brake pedal, refer to BR-6,
"BRAKE PEDAL" .
Booster SolenoidAKS006ZZ
Disconnect booster solenoid/release switch connector, and check
resistance value between terminals 4 and 6.
Switch Condition Resistance [Ω]
ON/OFF Depressed Approx. 0
Released Approx. 5,456
DISTANCE Depressed Approx. 741
Released Approx. 5,456
ACCEL/RES Depressed Approx. 2,586
Released Approx. 5,456
COAST/SET Depressed Approx. 1,406
Released Approx. 5,456
CANCEL Depressed Approx. 309
Released Approx. 5,456
SKIA5983E
Continuity
ICC brake switch Stop lamp switch
When brake pedal is depressed No Yes
When brake pedal is released Yes No
SKIA5984E
4 - 6 :Approx. 1.4Ω
SKIA1255E

ACS-66
[ICC]
ELECTRICAL COMPONENT INSPECTION
Revision: 2004 November 2004 FX35/FX45
Release SwitchAKS00700
Disconnect booster solenoid/release switch connector and check
resistance between the terminals.
NOTE:
If pedal is depressed insufficiently, resistance value may remain unchanged.Condition 1 - 3 1 - 2 2 - 3
Release the brake pedal.Continuity
should exist.Continuity
should not
exist.Continu-
ity should
not exist.
Depress the brake pedal.Continuity
should not
exist. (Note)Continuity
should
exist.
(Note)Continu-
ity should
not exist.SKIA1256E