2008 INFINITI FX35 brake fluid

BR-26
< SERVICE INFORMATION >
REAR DISC BRAKE
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-24, "
Compo-
nent".
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-24,
"Component".
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-8, "
Bleeding Brake
System".
5. Install tires to the vehicle.
Disassembly and Assembly of Brake Caliper AssemblyINFOID:0000000001327637
NOTE:
Do not remove torque member, brake pads, shims, shim cover and pad retainers, when disassembling or
assembling cylinder body.
DISASSEMBLY
1. Remove sliding pin bolts, and then remove brake pads, shims, shim cover, 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.
3. As shown in the figure, using a flat-bladed screwdriver, remove retaining ring from cylinder body.
4. Place a wooden block as shown in the figure, and blow air from union bolt mounting hole to remove pistons and piston boots.
CAUTION:
Do not get your fingers caught in piston.
SBR028A
BRD0041D
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REAR DISC BRAKEBR-27
< SERVICE INFORMATION >
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5. Using a flat-bladed screwdriver, remove piston seals from cylin- der body.
CAUTION:
Be careful not to damage cylinder inner wall.
INSPECTION AFTER DISASSEMBLY
Cylinder Body
CAUTION:
 Use new brake fluid to clean. Do not use mine ral oils such as gasoline or kerosene.
 Check inside surface of cylinder for score, rust wear , damage or foreign materials. If any of the
above conditions are obser ved, replace cylinder body.
 Minor damage from rust or foreign materials m ay be eliminated by polishing surface with a fine
emery paper. Replace cylinder body if necessary.
Torque Member
Check for wear, cracks, and damage. If damage or def ormation is present, replace the torque member.
Piston
CAUTION:
 Piston sliding surface is plated, do not polish with emery paper even if rust of foreign materials are
stuck to sliding surface.
 Check piston for score, rust, wear , damage or presence of foreign materials. Replace if any of the
above condition are observed.
Sliding Pin Bolts and Sliding Pin Boots
Check sliding pin bolts and sliding pin boots, for wear, damage and cracks. If damage or deformation is
present, replace the applicable part.
ASSEMBLY
1. Apply polyglycol ether based lubricant to the piston seal, and install them to the cylinder body.
CAUTION:
Do not reuse piston seal.
2. Apply rubber grease to piston boots. Cover the piston end with piston boot, and install cylinder side lip on piston boots properly
into groove on cylinder body.
CAUTION:
Do not reuse piston boot.
SFIA0999E
SFIA2278E
SFIA2498E
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BR-28
< SERVICE INFORMATION >
REAR DISC BRAKE
3. Apply brake fluid to piston, and press piston into cylinder bodyby hand to assemble piston side lip on piston boot properly into
groove on piston.
CAUTION:
Press piston evenly and change the pressing point to pre-
vent the inner wall of cylinder from being rubbed.
4. Fix piston boot with retaining ring. CAUTION:
 Make sure boot is firmly in cylinder body groove.
 Do not reuse retaining ring.
5. Install sliding pin bolts and sliding pin boots to torque member.
6. Apply PBC (Poly Butyl Cuprysil) grease or silicone- based grease to the backside of brake pad and to both
sides of shim, and attach inner shim and shim cover to inner pad, and the outer shim to outer pad.
7. Assembling shims and shim cover to pad. CAUTION:
When attaching pad retainer, inst all 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-24, "
Component".
10. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-8, "
Bleeding Brake System".
DISC ROTOR INSPECTION
Visual Inspection
Check surfaces of disc rotor for uneven wear, cra cks, and serious damage. If a malfunction is detected,
replace applicable part.
Runout Inspection
1. Using wheel nuts, fix the disc rotor to wheels hub. (2 or more positions)
2. Using a dial indicator, check runout.
CAUTION:
Before measuring, make sure that wheel bearing axle end
play is within the specification. Refer to RAX-6, "
On-Vehicle
Inspection".
3. If runout is outside the limit, find minimum runout point by shift- ing mounting positions of disc rotor and wheel hub by one hole.
SFIA2279E
SFIA2280E
PFIA0273E
Measurement point : At a point 10 mm (0.394 in)
from outer edge of disc.
Runout limit : 0.05 mm (0.0020 in) or less
SBR019B
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BR-30
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000001327639
Unit: mm (in)
Brake PedalINFOID:0000000001327640
Brake BoosterINFOID:0000000001327641
Vacuum type
Check ValveINFOID:0000000001327642
Front Disc BrakeINFOID:0000000001327643
Rear Disc BrakeINFOID:0000000001327644
Front brakeRotor outer diameter
× thickness 320 × 34 (12.598 × 1.339)
Pad length × width × thickness 130.0 × 50.0 × 11.0 (5.118 × 1.969 × 0.433)
Cylinder bore diameter 45.0 (1.772) × 2
Rear brake Rotor outer diameter
× thickness 308 × 16 (12.13 × 0.63)
Pad length × width × thickness 83.0 × 33.0 × 8.5 (3.268 × 1.299 × 0.335)
Cylinder bore diameter 42.86 (1.6874)
Master cylinder Cylinder bore diameter 25.4 (1.00)
Control valve Valve model Electric brake force distribution
Brake booster Diaphragm diameter Primary 228.5 (9.0)
Secondary 203.0 (8.0)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface) 161.5 − 171.5 mm (6.358 − 6.752 in)
Depressed pedal height
[under a force of 490 N (50 kg, 110 lb) with engine running] More than 95 mm (3.74 in)
Clearance between stopper rubber and the threaded end of stop lamp
switch and ASCD cancel switch (or brake switch) 0.74
− 1.96 mm (0.0291 − 0.0772 in)
Pedal play 3 − 11 mm (0.12 − 0.43 in)
Output rod length 15.6 − 15.9 mm (0.614 − 0.626 in)
Input rod length 126.5 mm (4.98 in)
Vacuum leakage
[at a vacuum of –66.7 kPa (–500 mmHg, –19.69 inHg)]Within vacuum of 1.3 kPa (10 mmHg, 0.39 inHg) for 15
seconds
Brake padStandard thickness 11.0 mm (0.433 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotor Standard thickness 34.0 mm (1.339 in)
Wear limit 32.0 mm (1.260 in)
Maximum uneven wear (measured at 8 positions) 0.015mm (0.0006 in) or less
Runout limit (with the disc rotor attached to the vehicle) 0.04 mm (0.0016 in) or less
Brake pad
Standard thickness 8.5 mm (0.335 in)
Repair limit thickness 2.0 mm (0.079 in)
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BRC-1
BRAKES
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CONTENTS
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
SERVICE INFORMATION .. ..........................
3
DTC INDEX ..................................................... .....3
C1101-C1116 ...................................................... ......3
C1120-C1136 ............................................................3
C1140-C1170 ............................................................3
U1000 ........................................................................4
PRECAUTIONS ...................................................5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution for Brake System ....................................5
Precaution for Brake Control .....................................5
PREPARATION ...................................................7
Special Service Tool ........................................... ......7
Commercial Service Tool ..........................................7
ON-VEHICLE SERVICE ......................................8
Adjustment of Steering Angle Sensor Neutral Po-
sition .................................................................... ......
8
Calibration of Decel G Sensor (AWD Models) ..........8
SYSTEM DESCRIPTION ................................ ....10
Schematic ........................................................... ....10
Functions .................................................................10
Fail-Safe Function ...................................................11
Hydraulic Circuit Diagram .......................................12
CAN Communication ...............................................12
TROUBLE DIAGNOSIS .....................................13
Fail-Safe Function ............................................... ....13
How to Proceed with Diagnosis ..............................13
Component Part Location .......................................16
Schematic ...............................................................17
Wiring Diagram - VDC - ..........................................18
Control Unit Input/Output Signal Standard ..............23
CONSULT-III Functions (ABS) ................................26
Self-Diagnosis ..................................................... ....26
Data Monitor ........................................................ ....28
Active Test ...............................................................30
For Fast and Accurate Diagnosis ............................31
Basic Inspection ......................................................32
TROUBLE DIAGNOSIS FOR SYSTEM ............34
DTC C1101 RR RH SENSOR-1 ..............................34
DTC C1102 RR LH SENSOR-1 ..............................35
DTC C1103 FR RH SENSOR-1 ..............................35
DTC C1104 FR LH SENSOR-1 ...............................35
DTC C1105 RR RH SENSOR-2 ..............................36
DTC C1106 RR LH SENSOR-2 ..............................36
DTC C1107 FR RH SENSOR-2 ..............................36
DTC C1108 FR LH SENSOR-2 ...............................36
DTC C1109 BATTERY VOLTAGE [ABNORMAL] ....36
DTC C1110 CONTROLLER FAILURE ....................37
DTC C1111 PUMP MOTOR ....................................37
DTC C1113 G-SENSOR .........................................38
DTC C1115 ABS SENSOR [ABNORMAL SIG-
NAL] .........................................................................
39
DTC C1116 STOP LAMP SW .................................39
DTC C1120 FR LH IN ABS SOL .............................40
DTC C1121 FR LH OUT ABS SOL .........................41
DTC C1122 FR RH IN ABS SOL ......................... ....41
DTC C1123 FR RH OUT ABS SOL .........................42
DTC C1124 RR LH IN ABS SOL .............................42
DTC C1125 RR LH OUT ABS SOL ..................... ....42
DTC C1126 RR RH IN ABS SOL ............................42
DTC C1127 RR RH OUT ABS SOL ........................42
DTC C1130 ENGINE SIGNAL 1 .......................... ....42
DTC C1131 ENGINE SIGNAL 2 ..............................42
DTC C1132 ENGINE SIGNAL 3 ..............................42
DTC C1133 ENGINE SIGNAL 4 ..............................42
DTC C1136 ENGINE SIGNAL 6 ..............................42
DTC C1140 ACTUATOR RLY .................................43
DTC C1142 PRESS SEN CIRCUIT ........................43
DTC C1143 ST ANG SEN CIRCUIT ................... ....44
DTC C1144 ST ANG SEN SIGNAL .........................45
DTC C1145 YAW RATE SENSOR ..........................46
DTC C1146 SIDE G-SEN CIRCUIT ........................46
DTC C1155 BR FLUID LEVEL LOW .......................46
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PRECAUTIONSBRC-5
< SERVICE INFORMATION > [VDC/TCS/ABS]
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612923
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000001327654
 Recommended fluid is brake fluid “DOT 3”. Refer to MA-9.
 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 safe ty 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 electrical
connectors of ABS actuator and elec tric unit (control unit) or bat-
tery 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.
Precaution for Brake ControlINFOID:0000000001327655
 During VDC/TCS/ABS operation, brake pedal lightly vi brates 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 customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnostic
servicing. Besides electrical system inspection, c heck booster operation, brake fluid level, and fluid leaks.
 If tire size and type are used in an improper combinat ion, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
 If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, VDC/TCS/ABS
function may have a malfunction or error.
 If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
SBR686C
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BRC-10
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
SchematicINFOID:0000000001327660
FunctionsINFOID:0000000001327661
VDC
 In addition to the TCS/ABS function, the driver
steering amount and brake operation amount are detected
from steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under steering /
over steering) is determined from information from G s ensor, wheel sensor, etc., and this information is used
to improve vehicle stability by controlling the braking and engine power to all four wheels.
 SLIP indicator lamp flashes to inform the driver of VDC operation.
 During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.
 ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when vehicle is subject
to strong shaking or large vibration, such as when vehi cle is on a turn table, a ship or a steep slope such as
bank while engine is running. In this case, restart engine on a normal road, and if ABS warning lamp, VDC
OFF indicator lamp, and SLIP indicator lamp turn off, there is no malfunction.
TCS
 The wheel spin of the drive wheels is detected by ABS actuator and electric unit (control unit) from the wheel
speed signals from four wheels, so if wheel spin occurs , drive wheel right and left brake fluid pressure con-
trol and engine fuel cut are performed while throttle value is restricted to reduce the engi\
ne torque and
decrease the amount of wheel spin. In addition, the degree throttle is opened is controlled to achieve the
optimum engine torque.
 Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.
 TCS may be activated any time vehicle suddenly accelerates, suddenly down/upshifts, or is driven on a road with a varying surface friction coefficient.
 During TCS operation, it informs a driver of sy stem operation by flashing SLIP indicator lamp.
ABS
 The Anti-Lock Braking System is a function that detec ts wheel revolution while braking, and it improves han-
dling stability during sudden braking by electrically prev enting 4 wheel lock. Maneuverability is also improved
for avoiding obstacles.
 If the electrical system malfunc tions, then the fail-safe function star ts, the ABS becomes inoperative, and
ABS warning lamp turns on.
 Electrical system diagnosis by CONSULT-III is available.
 During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
 When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noises may be heard from engine compartment. This is a normal status of operation check.
SFIA1160E
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SYSTEM DESCRIPTIONBRC-11
< SERVICE INFORMATION > [VDC/TCS/ABS]
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 Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
EBD
 The Electronic Brake Distribution is a function that detects subtle slippages between front and rear wheels
during braking, and it improves handling stability by elec tronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.
 In case of electrical system malfunction, the fail- safe function is activated, EBD and ABS becomes inopera-
tive, and ABS warning lamp and brake warning lamp are turned on.
 Electrical system diagnosis by CONSULT-III is available.
 During EBD operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
 When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noises may
be heard from engine compartment. This is a normal status of operation check.
 Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
Fail-Safe FunctionINFOID:0000000001327662
VDC / TCS SYSTEM
In case of malfunction in the VDC/TCS system, VDC O FF indicator lamp and SLIP indicator lamp are turned
on, and the condition of vehicle is the same as the c ondition of vehicles without VDC/TCS system. In case of
malfunction in the VDC/TCS system, the ABS control c ontinues to operate normally without VDC/TCS control.
CAUTION:
If the fail-safe function is acti vated, then perform the self-diagnos is for VDC/TCS/ABS control system.
ABS, EBD SYSTEM
In case of electrical malfunctions with the ABS, ABS warning lamp, VDC OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical malfunc tions with the EBD, brake warning lamp, ABS warning lamp,
VDC OFF indicator lamp and SLIP indicator lamp wil l turn on. Simultaneously, the VDC/TCS/ABS become one
of the following conditions of the fail-safe function.
 For malfunction of ABS, only the EBD is activated and t he condition of vehicle is the same condition of vehi-
cles without TCS/ABS system.
NOTE:
ABS self-diagnosis sound may be heard. That is a no rmal condition because a self-diagnosis for “Ignition
switch ON” and “The first starting” are being performed.
 For malfunction of EBD, EBD and ABS become inoperative, and the condition of vehicle is the same as the
condition of vehicles wit hout TCS/ABS, EBD system.
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