Ac system INFINITI FX35 2006 Service Manual

BR-10
BRAKE FLUID
Revision: 2006 December 2006 FX35/FX45
Bleeding Brake SystemNFS000LW
CAUTION:

Carefully monitor brake fluid level in reservoir tank
during bleeding operation.

Refill with new brake fluid “DOT 3”. Make sure it is at least
half way at all times while bleeding air out of system.

Place a container under master cylinder not to spill brake
fluid.

Turn ignition switch OFF and disconnect VDC actuator
connectors or battery cables.

Bleed air in the following order. Right rear brake → Left
front brake → Left rear brake → Right front brake
1. Connect a transparent vinyl tube to bleed valve.
2. Fully depress brake pedal several times.
3. With brake pedal depressed, open bleed valve to release air.
4. Close bleed valve.
5. Release brake pedal slowly.
6. Repeat steps 2, through 5, until clear brake fluid comes out of bleed valve.
SBR995
SBR419C

BRAKE TUBE AND HOSE BR-11
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Revision: 2006 December 2006 FX35/FX45
BRAKE TUBE AND HOSEPFP:46210
Hydraulic CircuitNFS000LX
CAUTION:

All brake hoses and tubes must be free from excessive bending, twisting and pulling.

Make sure there is no interference with other parts when turning steering both clockwise and
counterclockwise.

The brake tubes and hoses is an important safety part. If a brake fluid leak is detected, always dis-
assemble the parts. Replace applicable part with a new one, if necessary.

Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Do not bend or twist brake hose sharply, or strongly pull it.

When removing components, cover brake line connections so that no dirt, no dust, or other for-
eign matter gets in.

Refill with new brake fluid “ DOT 3 ”.

Do not reuse drained brake fluid.
Removal and Installation of Front Brake Tube and Brake Hose NFS000LY
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt and remove brake hose from caliper assembly.
4. Remove lock plate and remove brake hose from vehicle.
INSTALLATION
1. Position brake hose by aligning with the protrusion on caliper assembly, and them tighten union bolt to the specified torque.
CAUTION:
Do not reuse copper washer.
2. Install brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible. Secure them it to bracket with lock
plate.
3. Using a flare nut torque wrench, tighten flare nut to the specified torque.
4. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
PFIA0818E
SFIA1204E

BR-12
BRAKE TUBE AND HOSE
Revision: 2006 December 2006 FX35/FX45
Removal and Installation of Rear Brake Piping and Brake Hose NFS000LZ
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt, and then remove brake hose from caliper assembly.
4. Remove lock nut plate and remove brake hose from vehicle.
INSTALLATION
1. Install brake hose to caliper assembly positioning hole and then tighten union bolt to the specified torque. Refer to BR-11,
"Hydraulic Circuit" .
CAUTION:
Do not reuse copper washer.
2. Connect brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible. Tighten it to the specified torque.
3. Using a flare nut torque wrench, tighten flare nut to the specified torque. Refer to BR-11, "
Hydraulic Circuit" .
4. After installation, bleed air. Refer to BR-10, "
Bleeding Brake System" .
Inspection After InstallationNFS000M0
CAUTION:
If a leak is detected at the connections, retighten it or replace damaged part if necessary.
1. Check brake lines (tubes and hoses), and connections for fluid leakage, damage, twist, deformation, con- tact with other parts, and loose connections.
2. While depressing brake pedal under a force of 785 N (80 kg, 177 lb) with engine running for approximately 5 seconds, check for fluid leak from each part. : 23.5 N·m (2.4 kg-m, 17 ft-lb)
SFIA1942E

BR-14
BRAKE MASTER CYLINDER
Revision: 2006 December 2006 FX35/FX45
5. Remove master cylinder assembly mounting nut, remove master cylinder assembly from the vehicle. Refer to BR-16, "
Removal and Installation" .
INSTALLATION
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.
1. Install in the reverse order of removal, and tighten mounting nuts to the specified torque. Refer to BR-15,
"Components" .
2. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" .
Disassembly and AssemblyNFS000M4
DISASSEMBLY
CAUTION:

Master cylinder can not be disassembled.

Remove reservoir tank only when absolutely necessary.
1. Remove pin (1).
2. Remove reservoir tank and grommet from master cylinder assembly.
ASSEMBLY
CAUTION:

Do not use mineral oil such as kerosene, gasoline during the cleaning and assembly process.

Do not drop parts. If a part is dropped, do not use it.
1. Apply brake fluid grommet and attach to master cylinder assembly. CAUTION:
Do not reuse grommet.
Do not reuse pin.
2. Install reservoir tank onto master cylinder assembly.
3. Install pin (1).
PFIA0816E
PFIA0816E

BR-16
BRAKE BOOSTER
Revision: 2006 December 2006 FX35/FX45
Removal and InstallationNFS000M6
REMOVAL
CAUTION:

Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Be careful not to deform or bend brake tube while removing and installing brake booster.

Replace clevis pin if it is damaged.

Be careful not to damage brake booster stud bolt threads. If brake booster is tilted or inclined dur-
ing installation, dash panel may damage the threads.

Install the check valve in the correct direction.
1. Remove vacuum hose from brake booster. Refer to BR-17, "
VACUUM LINES" .
2. Remove brake master cylinder. Refer to BR-13, "
Removal and Installation" .
3. Disconnect harness connector from brake booster assembly. (ICC model)
4. Remove snap pin and clevis pin from inside the vehicle. Refer to BR-7, "
Components" .
5. Remove nuts from brake booster and brake pedal bracket.
6. Remove brake booster assembly from engine room.
INSPECTION AFTER REMOVAL
Output Rod Length Inspection
1. Using a handy vacuum pump, apply a vacuum of –66.7 kPa (– 500 mmHg, –19.69 inHg) to brake booster.
2. Check output rod length.
INSTALLATION
1. Loosen lock nut to adjust input rod length so that the length “B” (shown in the figure) satisfies the specified value.
2. After adjusting “B”, temporarily tighten lock nut to install brake booster assembly to the vehicle. At this time, make sure to
install a gasket between brake booster assembly and the engine
room.
3. Connect brake pedal with clevis of input rod.
4. Install brake pedal bracket mounting nuts and bolt and tighten them to the specified torque. BR-7, "
Components" .
5. Install brake tube from brake master cylinder to ABS actuator. Refer to BR-11, "
Hydraulic Circuit" .
6. Install master cylinder to booster assembly. Refer to BR-13, "
Removal and Installation" .
7. Adjust the height and play of brake pedal. BR-6, "
Inspection and Adjustment" .
8. Tighten lock nut of input rod to the specified torque. Refer to BR-15, "
Components" .
9. Bleed air. Refer to BR-10, "
Bleeding Brake System" .
Standard dimension when applying a vacuum of
− 66.7 kPa ( −500 mmHg, −19.69 inHg):
15.6 − 15.9 mm (0.614 − 0.626 in)
SFIA2146E
Length “B” : 126.5 mm (4.98 in)
SGIA0060E

FRONT DISC BRAKE BR-21
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Revision: 2006 December 2006 FX35/FX45
4. Remove union bolts and torque member bolts, and remove brake caliper assembly from the vehicle.
5. Remove disc rotor. CAUTION:
Put matching marks on both disc rotor and wheel hub when
removing disc rotor.
INSTALLATION
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.
1. Install disc rotor.
CAUTION:
Align the matching marks of disc rotor and wheel hub, which were marked at the time of removal
when reusing disc rotor.
2. Install caliper assembly to vehicle, and tighten mounting bolts to the specified torque. Refer to BR-19,
"Components" .
CAUTION:
Before installing torque member to vehicle, wipe oil and grease on washer seats on steering
knuckle and mounting surface of torque member.
3. Install a projection of brake hose metal fitting by aligning with protrusions on cylinder body, and tighten union bolts to the specified torque. Refer to BR-19, "
Components" .
CAUTION:

Do not reuse copper washer for union bolts.

Assemble brake hose securely on caliper assembly.
4. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
5. Install tires to vehicle.
Disassembly and Assembly of Brake Caliper AssemblyNFS000MD
NOTE:
Do not remove torque member, brake pads, shims, shim cover and pad retainer, when disassembling or
assembling cylinder body.
DISASSEMBLY
1. Remove caliper assembly from vehicle. Refer to BR-20,
"Removal and Installation of Brake Caliper Assembly" .
2. Remove sliding pin bolts from cylinder body, and remove pad, shim, shim cover and pad retainer from torque member.
CAUTION:
When removing pad retainer from torque member, lift the
pad retainer in the direction shown by arrow (shown in the
figure) so as not to deform it.
SFIA0140E
SBR556E

FRONT DISC BRAKE BR-23
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BR
Revision: 2006 December 2006 FX35/FX45
2. Apply rubber grease to piston boot. Cover the piston end with piston boot, and install cylinder side lip on piston boot properly
into groove on cylinder body.
CAUTION:
Do not reuse piston boot.
3. Apply brake fluid to piston, and press piston into cylinder body by hand to assemble piston side lip on piston boot properly into
groove on piston.
CAUTION:
Press piston evenly and vary the pressing point to prevent
cylinder inner wall from being rubbed.
4. Install sliding pins and sliding pin boots to torque member.
5. Install the torque member to the knuckle spindle and tighten the mounting bolts to the specified torque. Refer to BR-19, "
Compo-
nents" .
CAUTION:
Before installing torque member to vehicle, wipe oil and
grease on the washer seats on steering knuckle and the
mounting surface of the torque member.
6. Install pad retainers to torque member.
7. After assembling shims and shim covers to pad, install it to torque member.
CAUTION:
Inner pad and outer pad have pad-return mechanism on the upper side of the pad retainer. When
installing pad, be sure to install pad return lever to pad wear sensor securely as shown in the fig-
ure.
8. Install cylinder body, and tighten sliding pin bolt to specified torque. Refer to BR-19, "
Components" .
9. Install a projection of brake hose metal fitting by aligning with protrusions on cylinder body, and then tighten union bolts to specified torque. Refer to BR-11, "
Hydraulic Circuit" .
CAUTION:

Assemble brake hose securely to protrusions on cylinder body.

Do not reuse copper washer for union bolts.
10. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
SFIA2432E
SFIA2279E
SBR557E

REAR DISC BRAKE BR-27
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BR
Revision: 2006 December 2006 FX35/FX45
Removal and Installation of Brake Caliper AssemblyNFS000MH
REMOVAL
1. Remove tires from vehicle with power tool.
2. Fasten disc rotor using wheel nut.
3. Drain brake fluid. Refer to BR-9, "
Drain and Refill" .
4. Remove union bolt and torque member bolts, and remove brake caliper assembly from the vehicle.
CAUTION:
Put matching marks on both disc rotor and wheel hub when
removing disc rotor.
5. Remove disc rotor.
INSTALLATION
CAUTION:

Refill with new brake fluid “DOT 3”.

Do not reuse drained brake fluid.
1. Install disc rotor. CAUTION:
Align the matching marks of disc rotor and wheel hub, which were marked at the time of removal
when reusing disc rotor.
2. Install caliper assembly to the vehicle, and tighten bolts to the specified torque. Refer to BR-25, "
Compo-
nents" .
CAUTION:
Before installing caliper assembly to the vehicle, wipe off oil and grease on washer seats on axle
assembly and mounting surface of caliper assembly.
3. Install brake hose to caliper assembly and tighten union bolt to the specified torque. Refer to BR-25,
"Components" .
CAUTION:

Do not reuse copper washer for union bolts.

Securely install brake hose to protrusion on caliper assembly.
4. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
5. Install tires to the vehicle.
Disassembly and Assembly of Brake Caliper AssemblyNFS000MI
NOTE:
Do not remove torque member, brake pads, shims, shim covers and pad retainers, when disassembling or
assembling cylinder body.
DISASSEMBLY
1. Remove sliding pin bolts, and then remove brake pads, shims, shim covers, and pad retainer from torque
member and cylinder.
CAUTION:
Do not drop brake pads, shims, shim cover and pad retainer from torque member.
2. Remove sliding pin boot from torque member.
PFIA0413E

BR-30
REAR DISC BRAKE
Revision: 2006 December 2006 FX35/FX45
7. Assembling shims and shim covers to pad. CAUTION:
When attaching pad retainer, install it firmly so that it does
not float up higher than torque member, as shown in the fig-
ure.
8. Install brake pad retainer and pad to torque member.
9. Install cylinder body. Tighten sliding pin bolts to the specified torque. Refer to BR-25, "
Components" .
10. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" .PFIA0273E

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
A
B
BRC
Revision: 2006 December 2006 FX35/FX45
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 Models) .... ..... 7
SYSTEM DESCRIPTION ....................................... ..... 8
System Diagram .................................................. ..... 8
Functions ............................................................. ..... 8
VDC .................................................................. ..... 8
TCS .................................................................. ..... 8
ABS .................................................................. ..... 9
EBD .................................................................. ..... 9
Fail-Safe Function ............................................... ..... 9
VDC / TCS SYSTEM ........................................ ..... 9
ABS, EBD SYSTEM ......................................... ..... 9
Hydraulic Circuit Diagram ................................... ... 10
CAN Communication ........................................... ... 10
SYSTEM DESCRIPTION ................................. ... 10
TROUBLE DIAGNOSIS ......................................... ....11
Fail-Safe Function ............................................... .... 11
VDC/TCS SYSTEM .......................................... .... 11
ABS, EBD SYSTEM ......................................... .... 11
How to Proceed with Diagnosis .......................... .... 11
BASIC CONCEPT ............................................ .... 11
DIAGNOSIS FLOWCHART ............................. ... 12
ASKING COMPLAINTS ................................... ... 13
EXAMPLE OF DIAGNOSIS SHEET ................ ... 13
Component Installation Location ......................... ... 14
Schematic ........................................................... ... 15
Wiring Diagram — VDC — .................................. ... 16
Control Unit Input/Output Signal Standard .......... ... 22 REFERENCE VALUE FROM CONSULT-II ......
... 22
CONSULT-II Functions (VDC) ............................. ... 24
CONSULT-II MAIN FUNCTION ........................ ... 24
CONSULT-II SETTING PROCEDURE ............. ... 24
Self-Diagnosis ..................................................... ... 25
DESCRIPTION ................................................. ... 25
OPERATION PROCEDURE ............................. ... 25
ERASE MEMORY ............................................ ... 25
DISPLAY ITEM LIST ........................................ ... 26
Data Monitor ........................................................ ... 29
OPERATION PROCEDURE ............................. ... 29
DISPLAY ITEM LIST ........................................ ... 29
Active Test ........................................................... ... 31
OPERATION PROCEDURE ............................. ... 31
TEST ITEM ....................................................... ... 32
For Fast and Accurate Diagnosis ........................ ... 33
PRECAUTIONS FOR DIAGNOSIS .................. ... 33
Basic Inspection .................................................. ... 34
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE
PADS INSPECTION ......................................... ... 34
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION .......................... ... 34
ABS WARNING LAMP, VDC OFF INDICATOR
LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP INSPECTION ...................... ... 34
TROUBLE DIAGNOSIS FOR SYSTEM ................. ... 36
Wheel Sensor Circuit ........................................... ... 36
Engine System .................................................... ... 38
VDC/TCS/ABS Control Unit Circuit ..................... ... 38
Pressure Sensor Circuit ....................................... ... 39
Steering Angle Sensor Circuit .............................. ... 40
Yaw Rate/Side G Sensor (2WD Models), Yaw Rate/
Side/Decel G Sensor (AWD Models) Circuit ........ ... 41
Solenoid and VDC Change-Over Valve Circuit ... ... 43
Actuator Motor Circuit .......................................... ... 44
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground Circuit .................................. ... 45
Stop Lamp Switch Circuit ..................................... ... 47
Brake Fluid Level Switch Circuit .......................... ... 48
When “ST ANG SEN SIGNAL” Appears on Self-