brake 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

QUICK REFERENCE CHART FX35/FX45
REAR WHEEL ALIGNMENT (Unladen*)
ELS0003Y
* : Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
BRAKEELS0003Z
* : Under force of 490 N( 50 kg, 110 lb ) with engine running.
REFILL CAPACITIESELS00040
Camber
Degree minute (Decimal degree)Minimum – 1° 18′ ( – 1.30° )
Nominal – 0° 48′ ( – 0.80° )
Maximum – 0° 18′ ( – 0.30° )
To t a l t o e - i nDistance ( A – B ) Minimum 2.4 mm ( 0.094 in )
Nominal 4.7 mm ( 0.185 in )
Maximum 7.0 mm ( 0.276 in )
Angle (left plus right )
Degree minute (Degree)Minimum 0° 05′ ( 0.08° )
Nominal 0° 10′ ( 0.17° )
Maximum 0° 15′ ( 0.25° )
Front brake Pad wear limit 2.0 mm ( 0.079 in )
Rotor repair limit 26.0 mm ( 1.024 in )
Rear brake Pad wear limit 2.0 mm ( 0.079 in )
Rotor repair limit 14.0 mm ( 0.551 in )
Pedal free height 161.5 - 171.5 mm ( 6.358 - 6.752 in )
Pedal depressed height* More than 80 mm ( 3.15 in )
UNITLiter US measure
Fuel tank90 23 - 3/4 gal
Coolant ( With reservoir tank )VQ35DE 8.6 9 - 1/8 qt
VK45DE 10.0 10 - 5/8 qt
Engine(VQ35DE)Drain and refill
With oil filter change 4.7 5 qt
Without oil filter change 4.4 4 - 5/8 qt
Dry engine (Overhaul) 5.4 5 - 3/4 qt
Engine(VK45DE)Drain and refill
With oil filter change 6.6 7qt
Without oil filter change 6.0 6 - 3/8 qt
Dry engine (Overhaul) 7.7 8 - 1/8 qt
Transmission A/T 10.3 10 - 7/8 qt
Transfer1.25 2 - 5/8 pt
Differential carrierFront 0.65 1 - 3/8 pt
Rear 1.4 3 pt
Power steering system 1.0 1 - 1/8 qt
Air conditioning systemCompressor oil 0.18 6.0 fl oz
Refrigerant 0.55 kg 1.21 lb
2004

ACS-1
AUTO CRUISE CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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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-6
[ICC]
DESCRIPTION
Revision: 2004 November 2004 FX35/FX45
DESCRIPTIONPFP:00000
OutlineAKS006YB
The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
ahead according to that vehicle's speed, or at the set speed, if the road ahead is clear.
The ICC function has two cruise control modes and brake assist (with preview function).
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
Vehicle-to-vehicle distance control mode, the same speed as other vehicles can be maintained without the
constant need to adjust the operating speed as with a normal cruise control system.
The system is intended to enhance the operation of the vehicle when following another vehicle in the same
lane and direction.
If the distance sensor detects a slower moving vehicle ahead, the system will reduce speed so that the vehicle
ahead can be followed at the selected distance.
The system automatically controls the throttle and applies the brakes (up to 25% of vehicle braking power) if
necessary.
The detection range of the sensor is approximately 390 ft (120 m) ahead.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
Conventional (fixed speed) cruise control mode is cruising at preset speeds.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
BRAKE ASSIST (WITH PREVIEW FUNCTION)
When the force applied to brake pedal exceeds a certain level, the Brake Assist is activated and generates a
greater braking force than that of a conventional brake booster even with light pedal force.
When the Preview Function identifies the need to apply the sudden brake by sensing the vehicle ahead in the
same lane and the distance and relative speed from it, it applies the brake pre-pressure before driver depress
the brake pedal and improves brake response by reducing its free play.
Refer to Owner's Manual for BRAKE ASSIST (WITH PREVIEW FUNCTION) operating instructions.
System DiagramAKS006YC
SKIA5972E

DESCRIPTION
ACS-7
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
Components DescriptionAKS006YD
CAN CommunicationAKS00815
CAN (Controller Area Network) is a serial communication line 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-
tric 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 UNIT
Refer to LAN-6, "CAN Communication Unit" .
Switch OperationAKS006YF
The system is operated by a master ON/OFF switch and four control switches, all mounted on the steering
wheel.
ComponentVe h i -
cle-to-
vehi-
cle dis-
tance
con-
trol
modeCon-
ven-
tional
(fixed
speed)
cruise
con-
trol
modeBrake
assist
(with
pre-
view
brake)Description
ICC unit×××Operates throttle control actuator and brake booster based on that sensor
signals and CAN communication data, then controls vehicle distance.
ICC sensor××Irradiate laser beam, and receives reflected laser beam to measure dis-
tance from preceding vehicle.
ECM××Transmits throttle position signal and ICC steering switch signal to ICC unit.
ABS actuator and electric
unit (control unit)×××Transmits wheel speed signal to ICC unit.
Brake pressure sensor××Detects fluid pressure in master cylinder.
Brake booster××Adjusts brake fluid pressure, based on command from ICC unit.
BCM×Transmit front wiper request signal to ICC unit.
TCM××Transmits gear position signal and output shaft revolution signal to ICC
unit.
SKIA5973E

ACTION TEST
ACS-9
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
ACTION TESTPFP:00000
ICC System Running TestAKS006YH
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
Set Checking
1. Press the ON/OFF switch for less than 1.5 seconds.
2. Drive the vehicle between 25 MPH (40 km/h for CANADA models) and 90 MPH (144 km/h for CANADA
models).
3. Push the COAST/SET switch.
4. Confirm that the desired speed is set as hand is released from the COAST/SET switch.
NOTE:

When there is no vehicle ahead, drive at the set speed steadily.

When there is a vehicle ahead, control to maintain distance from the vehicle ahead, watching its speed.

The set vehicle speed is displayed on the ICC system indicator in the combination meters.
Check For Increase Of The Cruising Speed
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed increases by 1 MPH (1 km/h for CANADA models) as ACCEL/RES switch is
pushed.
NOTE:
The maximum set speed of the vehicle-to-vehicle distance control mode is 90 MPH (144 km/h for CANADA
models).
Check For Decrease Of The Cruising Speed
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed decreases by 1 MPH (1 km/h for CANADA models) as COAST/SET switch is
pushed.
NOTE:

Vehicle-to-vehicle distance control mode is automatically turned off when the driving speed lowers to 20
MPH (32 km/h for CANADA models) due to the deceleration of the vehicle ahead.

The minimum set speed of the vehicle-to-vehicle distance control mode is 25 MPH (40 km/h for CANADA
models).
Check For The Cancellation Of Vehicle-To-Vehicle Distance Control Mode (Normal Driving
Condition) In The Following Cases:
1. When the brake pedal is depressed after the system is turned on.
2. When the select lever is shifted into other than “D” including manual shift.
3. When the ON/OFF switch is turned off.
4. When CANCEL switch is operated.
Check For Restoring The Speed That Is Set By Vehicle-To-Vehicle Distance Control Mode
Before Cancellation
1. Cancel the system by depressing the foot brake.Then, check that the speed before cancellation is
restored when pressing ACCEL/RES switch with 25 MPH (40 km/h for CANADA models) or above.
2. Cancel the system by shifting the select lever into other than “D”, Then, check if the speed set before the
cancellation is restored when ACCEL/RES switch is pressed.
3. Check if the speed previously set is restored when ACCEL/RES switch is operated with driving 25 MPH
(40 km/h for CANADA models), after canceling vehicle-to-vehicle distance control mode by operating the
CANCEL switch.

ACS-12
[ICC]
LASER BEAM AIMING ADJUSTMENT
Revision: 2004 November 2004 FX35/FX45
LASER BEAM AIMING ADJUSTMENTPFP:00026
OutlineAKS006YI
Adjust the laser beam aiming every time the ICC sensor is removed or installed.
CAUTION:

Place the vehicle on the level ground when the laser beam aiming adjustment is operated.

Follow the CONSULT-II when adjusting the Laser beam aiming (Laser beam aiming adjustment
cannot be operated without CONSULT-II).
PreparationAKS006YJ

Keep all tires inflated to correct pressures. Adjust the tire pressure to the specified pressure value.

See that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.

Shift the gear into “P” position and release the parking brake.

Clean the sensor with a soft cloth.
Outline of Adjustment ProcedureAKS006YK
1. Set up the ICC target board [KV99110100 (J-45718)].
2. Adjust the sensor following the procedure on CONSULT-II (Turn manually the screw for up-down position
adjustment. ICC sensor automatically adjust the right-left position.).
Setting the ICC Target BoardAKS006YL
Accurate ICC target board setting is required for the laser beam aiming adjustment.
CAUTION:
ICC system does not function normally if laser beam aiming is not accurate.
ADJUSTING HEIGHT OF THE TARGET
1. Attach a triangle scale as shown in the right figure.
SKIA6179E
SKIA5974E

TERMINALS AND REFERENCE VALUE
ACS-27
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
TERMINALS AND REFERENCE VALUEPFP:00000
Terminals and Reference Value for ICC UnitAKS006YQ
terminals
(wire color)
itemcondition
voltage (V)
+-ignition
switchoperation
1 (R/W)
2 (R/W)
GroundBattery power supply OFF —Power supply voltage
(Approx. 12)
5 (R) CAN L ON — —
6 (GY/L)Release switch power sup-
plyON — Approx. 10
7 (GY/R) NEUT-SW — — —
8 (Y/G)24
(Y/R)Brake pressure sensor
power supplyON — Approx. 5
10 (B/R)
GroundBrake booster solenoid
(+) sideON —
12 (L/W)Brake booster solenoid
(–) sideON —
14 (L) CAN H ON — —
15
(LG/R)Brake release switch
(normal closed)ONDepress the brake pedal. Approx. 0
Release the brake pedal. Approx. 10
17 (BR)24
(Y/R)Brake pressure sensor sig-
nalONRelease the brake pedal. Approx. 0.5
Depress the brake pedal.Approx. 0.5 - 5
(Note) Voltage becomes higher
depending on effectiveness of
depressing brakes.
19 (B)
20 (B)
46 (B)
GroundGround ON — Approx. 0
22 (G/Y)Brake release switch
(normally open)ONDepress the brake pedal. Approx. 10
Release the brake pedal. Approx. 0
29 (SB)ICC brake switch
(normal closed)ONSelector
lever: Not in
“N” or “P”
positionDepress the brake
pedal.Approx. 0
Release the brake
pedal.Power supply voltage
(Approx. 12)
30 (Y) DDL-TX — — —
SKIA1243E
SKIA1243E

ACS-28
[ICC]
TERMINALS AND REFERENCE VALUE
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for ICC SensorAKS006YR
33 (G/R)
42 (G/R)
GroundIgnition switch ON or
STARTON — Battery voltage (Approx.12)
38 (P/G)Stop lamp switch
(normally open) ONDepress the brake pedal. Battery voltage (Approx.12)
Release the brake pedal. Approx. 0
39
(G/OR)DDL-RX — — —
40
(PU/W)parking brake signal ONParking brake is ONPower supply voltage
(Approx. 12)
Parking brake is OFF Approx. 0
47 (W/R)Stop lamp drive output sig-
nalONBrake operating with ICC system Battery voltage (Approx.12)
Brake not operating with ICC sys-
temApprox. 0 terminals
(wire color)
itemcondition
voltage (V)
+-ignition
switchoperation
terminals
(wire color)
itemcondition
voltage (V)
+–ignition
switchoperation
1 (Y)
GroundICC sensor power ON — Battery voltage (Approx.12)
3 (L) CAN H ON — —
6 (R) CAN L ON — —
4 (B) Ground ON — Approx. 0