2005 INFINITI FX35 belt

BL-240
BODY REPAIR
Revision: 2005 July2005 FX
1. Hoodledge assembly 16. Rear floor rear
2. Upper front hoodledge 17. Rear floor seat belt anchor reinforcement
3. Hoodledge reinforcement 18. Rear floor side
4. Upper hoodledge 19. Spare tire clamp bracket
5. Upper dash extension 20. Front side member
6. Upper dash crossmember assembly 21. Front side member rear reinforcement
7. Upper dash assembly 22. Front side member front extension
8. Front cowl top assembly 23. Front side member closing plate
9. Lower dash 24. Front side member outrigger assembly (RH&LH)
10. Front floor center 25. Front crossmember
11. Front floor 26. 2ND rear crossmember
12. Front floor reinforcement 27. Rear side member assembly
13. Inner sill 28. Rear side member extension
14. Lower rear seat crossmember 29. Rear center crossmember assembly
15. Rear floor front 30. Rear end crossmember assembly

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
C
D E
G H
I
J
K L
M
SECTION BR
A
B
BR
Revision: 2005 July 2005 FX
BRAKE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions for Brake System ............................. ..... 3
PREPARATION ...................................................... ..... 4
Commercial Service Tools ................................... ..... 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 5
NVH Troubleshooting Chart ................................ ..... 5
BRAKE PEDAL ..................................................... ..... 6
Inspection and Adjustment .................................. ..... 6
PLAY AND CLEARANCE BETWEEN BRAKE
PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED ................................................... ..... 6
ADJUSTMENT ................................................. ..... 7
Removal and Installation ..................................... ..... 7
COMPONENT PARTS LOCATION .................. ..... 7
REMOVAL ........................................................ ..... 8
INSPECTION AFTER REMOVAL .................... ..... 8
INSTALLATION ................................................ ..... 8
BRAKE FLUID ....................................................... ..... 9
On-Board Inspection ........................................... ..... 9
LEVEL CHECK ................................................ ..... 9
Drain and Refill .................................................... ..... 9
Bleeding Brake System ....................................... ... 10
BRAKE PIPING AND HOSE ................................. ....11
Hydraulic Circuit .................................................. .... 11
Removal and Installation of Front Brake Piping and
Brake Hose ......................................................... .... 11
REMOVAL ........................................................ .... 11
INSTALLATION ................................................ .... 11
Removal and Installation of Rear Brake Piping and
Brake Hose ......................................................... ... 12
REMOVAL ........................................................ ... 12
INSTALLATION ................................................ ... 12
Inspection After Installation ................................. ... 12
BRAKE MASTER CYLINDER ............................... ... 13
On-Board Inspection ........................................... ... 13 LEAK INSPECTION .........................................
... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSTALLATION ................................................ ... 13
Components ........................................................ ... 13
Disassembly and Assembly ................................. ... 14
DISASSEMBLY ................................................ ... 14
ASSEMBLY ...................................................... ... 14
BRAKE BOOSTER ................................................ ... 15
On-Vehicle Service .............................................. ... 15
OPERATING CHECK ....................................... ... 15
AIRTIGHT CHECK ........................................... ... 15
Removal and Installation ..................................... ... 16
REMOVAL ........................................................ ... 16
INSPECTION AFTER REMOVAL .................... ... 16
INSTALLATION ................................................ ... 17
VACUUM LINES .................................................... ... 18
Removal and Installation ..................................... ... 18
Inspection ............................................................ ... 18
VISUAL INSPECTION ...................................... ... 18
CHECK VALVE INSPECTION .......................... ... 19
FRONT DISC BRAKE ............................................ ... 20
On-Vehicle Inspection .......................................... ... 20
PAD WEAR INSPECTION ................................ ... 20
Components ........................................................ ... 20
Removal and Installation of Brake Pad ............... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
Removal and Installation of Brake Caliper Assembly ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
Disassembly and Assembly of Brake Caliper
Assembly ............................................................. ... 22
DISASSEMBLY ................................................ ... 22
CALIPER INSPECTION ................................... ... 23
ASSEMBLY ...................................................... ... 23
DISC ROTOR INSPECTION ............................ ... 24
BRAKE BURNISHING PROCEDURE .............. ... 25
REAR DISC BRAKE .............................................. ... 26

PRECAUTIONS BR-3
C
D E
G H
I
J
K L
M A
B
BR
Revision: 2005 July 2005 FX
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AFS0028A
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 Procedures without Cowl Top CoverAFS0038B
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Brake SystemAFS001MQ

Recommended fluid is brake fluid “DOT 3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas.

To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.

Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use flare nut wrench when removing and installing brake tube.

When installing brake piping, be sure to check torque.

Before working, turn ignition switch OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
terminal.

Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer to BR-25, "
BRAKE BURNISHING PROCEDURE" .
WARNING:

Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
PIIB3706J
SBR686C

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D E
G H
I
J
K L
M
SECTION BRC
A
B
BRC
Revision: 2005 July 2005 FX
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Brake System ............................. ..... 3
Precautions for Brake Control ............................. ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 5
ON-VEHICLE SERVICE ........................................ ..... 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ...................................................................... ..... 6
Calibration of Decel G Sensor (AWD Model) ...... ..... 6
SYSTEM DESCRIPTION ....................................... ..... 8
System Diagram .................................................. ..... 8
VDC Function ...................................................... ..... 8
TCS Function ...................................................... ..... 8
ABS Function ...................................................... ..... 8
EBD Function ...................................................... ..... 9
Fail-Safe Function ............................................... ..... 9
VDC / TCS SYSTEM ........................................ ..... 9
ABS, EBD SYSTEM ......................................... ..... 9
Hydraulic Circuit Diagram ................................... ... 10
CAN COMMUNICATION ....................................... ....11
System Description ............................................. .... 11
TROUBLE DIAGNOSIS ......................................... ... 12
How to Proceed with Diagnosis .......................... ... 12
BASIC CONCEPT ............................................ ... 12
DIAGNOSIS FLOWCHART ............................. ... 13
ASKING COMPLAINTS ................................... ... 14
EXAMPLE OF DIAGNOSIS SHEET ................ ... 14
Component Installation Location ......................... ... 15
Schematic ........................................................... ... 16
Wiring Diagram — VDC — .................................. ... 17
Control Unit Input/Output Signal Standard .......... ... 23
REFERENCE VALUE FROM CONSULT-II ...... ... 23
CONSULT-II Functions ........................................ ... 25
CONSULT-II MAIN FUNCTION ........................ ... 25
CONSULT-II BASIC OPERATION PROCEDURE ... 26
SELF-DIAGNOSIS ........................................... ... 27
DATA MONITOR .............................................. ... 30
ACTIVE TEST .................................................. ... 33
For Fast and Accurate Diagnosis ........................ ... 35
PRECAUTIONS FOR DIAGNOSIS .................. ... 35
Basic Inspection .................................................. ... 36
BASIC INSPECTION 1: BRAKE FLUID
AMOUNT, LEAKS, AND BRAKE PADS INSPEC-
TION ................................................................. ... 36
BASIC INSPECTION 2: POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION ................................................................. ... 36
BASIC INSPECTION 3: ABS WARNING LAMP,
VDC OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPEC-
TION ................................................................. ... 37
Inspection 1: Wheel Sensor Circuit ..................... ... 37
Inspection 2: Engine System ............................... ... 39
Inspection 3: VDC/TCS/ABS Control Unit Circuit ... 40
Inspection 4: Pressure Sensor Circuit ................. ... 40
Inspection 5: Steering Angle Sensor Circuit ........ ... 42
Inspection 6: Yaw Rate/Side G Sensor (2WD
Model), Yaw Rate/Side/Decel G sensor (AWD Mod-
els) Circuit ............................................................ ... 44
Inspection 7: Solenoid and VDC Change-Over
Valve Circuit ......................................................... ... 46
Inspection 8: Actuator Motor Circuit .................... ... 47
Inspection 9: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground Circuit ......... ... 48
Inspection 10: Stop Lamp Switch Circuit ............. ... 50
Inspection 11: Brake Fluid Level Switch Circuit ... ... 51
Inspection 12: When “ST ANG SEN SIGNAL”
Appears on Self-diagnosis Results Display ......... ... 52
Inspection 13: When “DECEL G SEN SET” Appears
on Self-diagnostic Results Display (AWD Model) ... 52
Inspection 14: CAN Communication Circuit ........ ... 53
Component Inspection ......................................... ... 53
VDC OFF SWITCH .......................................... ... 53
Symptom 1: Excessive ABS Function Operation

PRECAUTIONS BRC-3
[VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
Revision: 2005 July 2005 FX
[VDC/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AFS00289
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 Brake SystemAFS001S3

Recommended fluid is brake fluid “DOT 3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.

Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.

Using a flare nut crowfoot and torque wrench, securely tighten
brake tube flare nuts.

Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.

Before working, turn ignition switch OFF and disconnect electri-
cal connectors of ABS actuator and electric unit (control unit) or
battery negative terminal.

When installing brake piping, be sure to check torque.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector.
Precautions for Brake ControlAFS001S4

During VDC/TCS/ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This
is normal.

Just after starting vehicle after turning ignition switch ON, brake pedal may vibrate or motor operating
noise may be heard from engine room. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check booster operation, brake fluid level, and
fluid leaks.

If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
SBR686C

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
C
D E
F
G H
I
J
K L
M
SECTION CO
A
CO
Revision: 2005 July 2005 FX
ENGINE COOLING SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Liquid Gasket ............................. ..... 3
REMOVAL OF LIQUID GASKET SEALING ..... ..... 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 6
OVERHEATING CAUSE ANALYSIS ..................... ..... 7
Troubleshooting Chart ......................................... ..... 7
COOLING SYSTEM ............................................... ..... 9
Cooling Circuit ..................................................... ..... 9
System Chart ...................................................... ... 10
ENGINE COOLANT ............................................... ....11
Inspection ............................................................ .... 11
LEVEL CHECK ................................................ .... 11
LEAK CHECK .................................................. .... 11
Changing Engine Coolant ................................... .... 11
DRAINING ENGINE COOLANT ...................... .... 11
REFILLING ENGINE COOLANT ..................... ... 12
FLUSHING COOLING SYSTEM ...................... ... 13
RADIATOR ............................................................. ... 14
Components ........................................................ ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSTALLATION ................................................ ... 15
INSPECTION AFTER INSTALLATION ............ ... 15
Checking Radiator Cap ....................................... ... 15
Checking Radiator ............................................... ... 16
RADIATOR (ALUMINUM TYPE) ........................... ... 17
Components ........................................................ ... 17
Disassembly and Assembly ................................ ... 17
PREPARATION ................................................ ... 17
DISASSEMBLY ................................................ ... 17
ASSEMBLY ...................................................... ... 18
INSPECTION ................................................... ... 20 COOLING FAN .......................................................
... 21
Components ........................................................ ... 21
Removal and Installation ..................................... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
INSPECTION AFTER INSTALLATION ............. ... 21
Disassembly and Assembly ................................. ... 21
DISASSEMBLY ................................................ ... 21
INSPECTION AFTER DISASSEMBLY ............. ... 21
ASSEMBLY ...................................................... ... 21
WATER PUMP ....................................................... ... 22
Components ........................................................ ... 22
Removal and Installation ..................................... ... 22
REMOVAL ........................................................ ... 22
INSPECTION AFTER REMOVAL .................... ... 24
INSTALLATION ................................................ ... 24
INSPECTION AFTER INSTALLATION ............. ... 25
WATER INLET AND THERMOSTAT ASSEMBLY . ... 26
Components ........................................................ ... 26
Removal and Installation ..................................... ... 26
REMOVAL ........................................................ ... 26
INSPECTION AFTER REMOVAL .................... ... 27
INSTALLATION ................................................ ... 27
INSPECTION AFTER INSTALLATION ............. ... 27
WATER OUTLET AND WATER PIPING ................ ... 28
Components ........................................................ ... 28
Removal and Installation ..................................... ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 29
INSPECTION AFTER INSTALLATION ............. ... 29
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 30
Standard and Limit ............................................... ... 30
ENGINE COOLANT CAPACITY (APPROXI-
MATE) ............................................................... ... 30
RADIATOR ....................................................... ... 30
THERMOSTAT ................................................. ... 30

CO-2Revision: 2005 July 2005 FX
VK45DE
PRECAUTIONS ......................................................... 31
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. ... 31
PREPARATION ...................................................... ... 32
Special Service Tools .......................................... ... 32
Commercial Service Tools ................................... ... 32
OVERHEATING CAUSE ANALYSIS ..................... ... 33
Troubleshooting Chart ......................................... ... 33
COOLING SYSTEM ............................................... ... 35
Cooling Circuit ..................................................... ... 35
System Chart ....................................................... ... 36
ENGINE COOLANT ............................................... ... 37
Inspection ............................................................ ... 37
LEVEL CHECK ................................................. ... 37
LEAK CHECK ................................................... ... 37
Changing Engine Coolant .................................... ... 37
DRAINING ENGINE COOLANT ....................... ... 37
REFILLING ENGINE COOLANT ...................... ... 38
FLUSHING COOLING SYSTEM ...................... ... 39
RADIATOR ............................................................. ... 41
Removal and Installation ..................................... ... 41
REMOVAL ........................................................ ... 41
INSTALLATION ................................................. ... 43
INSPECTION AFTER INSTALLATION ............. ... 43
Checking Radiator Cap ....................................... ... 43
Checking Radiator ............................................... ... 44
RADIATOR (ALUMINUM TYPE) ............................ ... 45
Disassembly and Assembly ................................. ... 45
PREPARATION ................................................ ... 45
DISASSEMBLY ................................................ ... 45
ASSEMBLY ...................................................... ... 46
INSPECTION .................................................... ... 48 COOLING FAN .......................................................
... 49
Removal and Installation (Crankshaft Driven Type) ... 49
REMOVAL ......................................................... ... 49
INSPECTION AFTER REMOVAL ..................... ... 49
INSTALLATION ................................................. ... 49
Removal and Installation (Motor Driven Type) ..... ... 50
REMOVAL ......................................................... ... 50
INSTALLATION ................................................. ... 50
Disassembly and Assembly (Motor Driven Type) ... 50 DISASSEMBLY ................................................. ... 50
INSPECTION AFTER DISASSEMBLY ............. ... 50
ASSEMBLY ....................................................... ... 50
WATER PUMP ........................................................ ... 51
Removal and Installation ...................................... ... 51
REMOVAL ......................................................... ... 51
INSPECTION AFTER REMOVAL ..................... ... 52
INSTALLATION ................................................. ... 52
INSPECTION AFTER INSTALLATION ............. ... 52
THERMOSTAT AND WATER CONTROL VALVE .. ... 53
Removal and Installation ...................................... ... 53
REMOVAL ......................................................... ... 53
INSPECTION AFTER REMOVAL ..................... ... 54
INSTALLATION ................................................. ... 54
INSPECTION AFTER INSTALLATION ............. ... 55
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 56
Standard and Limit ............................................... ... 56
ENGINE COOLANT CAPACITY (APPROXI-
MATE) ............................................................... ... 56
RADIATOR ........................................................ ... 56
THERMOSTAT .................................................. ... 56
WATER CONTROL VALVE ............................... ... 56

PRECAUTIONS CO-3
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2005 July 2005 FX
[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00B4K
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 Liquid GasketABS00B4L
REMOVAL OF LIQUID GASKET SEALING

After removing mounting nuts and bolts, separate the mating
surface using the seal cutter [SST] and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.

Tap the seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.

In areas where seal cutter is difficult to use, use a plastic ham-
mer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as a screwdriver
is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove old liquid gasket adhering to the liquid
gasket application surface and the mating surface.

Remove liquid gasket completely from the groove of the liquid
gasket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur- face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
PBIC0002E
PBIC0003E