Brake fluid INFINITI M35 2006 Factory Repair Manual

FRONT DISC BRAKE
BR-27
C
D
E
G
H
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K
L
MA
B
BR
Revision: 2006 January2006 M35/M45
ASSEMBLY
1. Apply polyglycol ether based lubricant to piston seal, and install
them to cylinder body.
CAUTION:
Do not reuse piston seal.
2. Apply rubber grease to piston boot. Cover the piston end with
piston boot, and then install cylinder side lip on piston boot
securely into a groove on cylinder body.
CAUTION:
Do not reuse piston boot.
3. Apply brake fluid to piston. Push piston into cylinder body by
hand and push piston boot piston-side lip into the piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.
4. Install sliding pins and sliding pin boots to torque member.
5. Install torque member to steering knuckle, and tighten mounting bolts to the specified torque. Refer to BR-
23, "Components" .
CAUTION:
Do not allow oil or any moisture on all contact surfaces between steering knuckle and brake cali-
per assembly.
6. Press in piston until pads can be installed, and then install cylinder body to torque member.
7. Tighten sliding pin bolts to the specified torque. Refer to BR-23, "
Components" .
SFIA2399E
SFIA2432E
SFIA2279E

BR-30
REAR DISC BRAKE
Revision: 2006 January2006 M35/M45
WAR NING :
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of air borne
particles or other materials.
CAUTION:
While removing cylinder body, do not depress brake pedal because piston will pop out.
It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of caliper assembly. In this case, hang cylinder body with a wire so as not to stretch
brake hose.
Do not damage piston boot.
If any shim is subject to serious corrosion, replace it with a new one.
Always replace shim and shim covers as a set when replacing brake pads.
Keep rotor free from brake fluid.
Burnish the brake pads and disc rotor mutually contacting surfaces after refinishing or replacing
rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to BR-34, "
BRAKE
BURNISHING PROCEDURE" .
Removal and Installation of Brake PadNFS000PI
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove lower sliding pin bolt.
3. Hang cylinder body with a wire, and remove pads, pad retainers, shims, and shim cover from torque mem-
ber.
CAUTION:
Deform pad retainer when removing pad retainer from torque member.
INSTALLATION
1. Apply PBC (Poly Butyl Cuprysil) grease or equivalent to between shim cover and shim. Install inner shim,
inner shim cover to inner pad, and outer shim, outer shim cover to outer pad.
2. Install pad retainers and pads to torque member.
3. Press in piston until pads can be installed, and then install cylin-
der body to torque member.
CAUTION:
In the case of replacing a pad with new one, check a brake
fluid level in the reservoir tank because brake fluid returns
to master cylinder reservoir tank when pressing piston in.
NOTE:
Use a disc brake piston tool (commercial service tool) to easily
press piston.
4. Install upper sliding pin bolt and tighten to the specified torque.
Refer to BR-29, "
Components" .
5. Check rear disc brake for drag.
6. Install tires to vehicle.
3: Apply polyglycol ether based lubricant.
: Apply brake fluid.
PFIA0273E

REAR DISC BRAKE
BR-31
C
D
E
G
H
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K
L
MA
B
BR
Revision: 2006 January2006 M35/M45
Removal and Installation of Brake Caliper AssemblyNFS000PJ
REMOVAL
1. Remove tires from vehicle with power tool.
2. Fasten disc rotor using wheel nut.
3. Drain brake fluid. Refer to BR-10, "
Drain and Refill" .
4. Remove union bolt and then disconnect brake hose from caliper
assembly.
5. Remove torque member mounting, bolts, and remove brake cal-
iper assembly.
CAUTION:
Do not drop brake pad.
6. Remove disc rotor.
CAUTION:
Put matching marks on wheel hub assembly and disc rotor,
if it necessary to remove disc rotor.
INSTALLATION
CAUTION:
Refill with new brake fluid “DOT 3”.
Never reuse drained brake fluid.
1. Install disc rotor.
CAUTION:
Alignment marks of disc rotor and wheel hub put at the time of removal when reusing disc rotor.
2. Install brake caliper assembly vehicle, and tighten torque member mounting bolts to the specified torque.
CAUTION:
Before installing caliper assembly, wipe off oil and moisture on all mounting surfaces of rear axle
and caliper assembly and threads, bolts and washers.
3. Install L-shaped pin of brake hose and then tighten union bolt to
the specified torque. Refer to BR-13, "
Removal and Installation
of Rear Brake Tube and Brake Hose" .
4. Refill with new brake fluid and bleed air. Refer to BR-11, "
Bleed-
ing Brake System" .
5. Check rear disc brake for drag.
6. Install tires to vehicle.
SFIA2972E
SDIA2638E
SFIA2049E

BR-32
REAR DISC BRAKE
Revision: 2006 January2006 M35/M45
Disassembly and Assembly of Brake Caliper AssemblyNFS000PK
NOTE:
Do not remove torque member, pads, shims, shim covers, and pad retainers when disassembling and assem-
bling cylinder body assembly.
DISASSEMBLY
1. Remove sliding pin bolt, and then remove cylinder body from torque member.
CAUTION:
Do not drop pads, shims, shim cover and pad retainers from torque member.
2. Remove sliding pin boot from torque member.
3. Remove retaining ring from cylinder body using a flat-bladed
screwdriver as shown in the figure.
4. Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.
CAUTION:
Do not get fingers caught in the piston.
5. Remove piston seal from cylinder body using a flat-bladed
screwdriver.
CAUTION:
Be careful not to damage a cylinder inner wall.
INSPECTION AFTER DISASSEMBLY
Cylinder Body
Check the inner wall of cylinder for corrosion, wear, and damage. If a malfunction is detected, replace cylinder
body.
CAUTION:
Clean cylinder body using new brake fluid. Never use mineral oils such as gasoline or kerosene.
Torque Member
Check torque member for wear, cracks, and damage. Replace if there are.
Piston
Check the piston surface for corrosion, wear, and damage. If a malfunction is detected, replace applicable
part.
SBR028A
BRD0041D
SFIA2277E

REAR DISC BRAKE
BR-33
C
D
E
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H
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K
L
MA
B
BR
Revision: 2006 January2006 M35/M45
CAUTION:
A piston sliding surface is plated. Do not polish with sandpaper.
Sliding Pin Bolt, Sliding Pin Boot
Check sliding pin bolt and sliding pin boot for wear, damage, and cracks. Replace if there are.
ASSEMBLY
1. Apply polyglycol ether based lubricant to piston seal, and install
them to cylinder body.
CAUTION:
Do not reuse piston seal.
2. Apply rubber grease to piston boot. Cover the piston end with
the piston boot, and then install cylinder side lip on the piston
boot securely into the groove on cylinder body.
CAUTION:
Do not reuse piston boot.
3. Apply brake fluid to piston. Push piston into cylinder body by
hand and push piston boot piston side lip into the piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.
4. Secure piston boot with retaining ring.
CAUTION:
Make sure that boot is securely engaged in the groove on
cylinder body.
Do not reuse retainer ring.
5. Install sliding pin boot to torque member.
6. Install the cylinder body to torque member, and then tighten slid-
ing pin bolt to the specified torque. Refer to BR-29, "
Compo-
nents" .
SFIA2278E
SFIA2498E
SFIA2279E
SFIA2280E

SERVICE DATA AND SPECIFICATIONS (SDS)
BR-35
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2006 January2006 M35/M45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsNFS000PL
Unit: mm (in)
Brake PedalNFS000PM
Brake BoosterNFS000PN
Va c u u m t y p e
Check ValveNFS000PO
Front Disc BrakeNFS000PP
Front brake Brake model CLZ31VD, CLZ31VB
Cylinder bore diameter 45 (1.772)
2
Pad length
width thickness 132 50 11 (5.20 1.969 0.433)
Rotor outer diameter
thickness 320 28 (12.60 1.10)
Rear brake Brake model AD14VF, AD14VE
Cylinder bore diameter 42.86 (1.687)
Pad length
width thickness 83.0 31.9 8.5 (3.268 1.256 0.335)
Rotor outer diameter
thickness 308 16 (12.13 0.63)
Master cylinder Cylinder bore diameter 25.4 (1)
Control valve Valve model Electric brake force distribution
Brake boosterBooster model N255
Diaphragm diameter 255 (10)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface) 157 167 mm (6.18 6.57 in)
Depressed pedal height
[under a force of 490 N (50 kg, 110 lb) with engine running]90 mm (3.54 in) or more
Clearance between threaded end of the stop lamp switch/brake switch
and bracket 0.74 - 1.96 mm (0.0291 - 0.0772 in)
Pedal play3 - 11 mm (0.12 - 0.43 in)
Input rod installation standard dimension 125 mm (4.92 in)
Vacuum leakage
[at vacuum of – 66.7 kPa (– 500 mmHg, – 19.69 inHg)]Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
Brake modelCLZ31VD, CLZ31VB
Brake padStandard thickness 11.0 mm (0.433 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotorStandard thickness 28.0 mm (1.102 in)
Wear limit 26.0 mm (1.024 in)
Thickness variation (measured at 8 positions) 0.015 mm (0.0006 in)
Runout limit (with it attached to the vehicle) 0.035 mm (0.0014 in)

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION BRC
A
B
BRC
Revision: 2006 January2006 M35/M45
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 Procedures without Cowl Top Cover ..... 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
ON-VEHICLE SERVICE ............................................. 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ........................................................................... 6
SYSTEM DESCRIPTION ............................................ 7
System Diagram ....................................................... 7
Function ................................................................... 7
ABS ....................................................................... 7
EBD ....................................................................... 7
TCS ....................................................................... 7
VDC ....................................................................... 8
ECD ....................................................................... 8
Operation That Is Not "System Error" ...................... 8
ABS ....................................................................... 8
TCS ....................................................................... 8
VDC ....................................................................... 8
Fail-Safe Function .................................................... 8
ABS, EBD SYSTEM .............................................. 8
VDC / TCS ............................................................ 9
Hydraulic Circuit Diagram ........................................ 9
CAN COMMUNICATION .......................................... 10
System Description ................................................ 10
TROUBLE DIAGNOSIS .............................................11
How to Perform Trouble Diagnoses ........................ 11
BASIC CONCEPT ................................................ 11
DIAGNOSIS FLOW CHART ............................... 12
ASKING COMPLAINTS ...................................... 13
EXAMPLE OF DIAGNOSIS WORKSHEET ........ 13
Component Parts Location ..................................... 14
Schematic .............................................................. 15Wiring Diagram — VDC — ..................................... 16
CONSULT-II Functions (ABS) ................................ 22
CONSULT-II MAIN FUNCTION ........................... 22
CONSULT-II BASIC OPERATION PROCEDURE
... 22
Self-Diagnosis .....................................................
... 23
OPERATION PROCEDURE ................................ 23
ERASE MEMORY ............................................... 23
DISPLAY ITEM LIST ........................................... 24
Data Monitor ........................................................... 27
OPERATION PROCEDURE ................................ 27
DISPLAY ITEM LIST ........................................... 27
Active Test .............................................................. 30
OPERATION PROCEDURE ................................ 30
TEST ITEMS ....................................................... 31
For Fast and Accurate Diagnosis ........................... 32
PRECAUTIONS FOR DIAGNOSIS ..................... 32
Basic Inspection ..................................................... 33
BASIC INSPECTION 1: BRAKE FLUID LEVEL,
LEAK INSPECTION AND BRAKE PAD .............. 33
BASIC INSPECTION 2: LOOSENESS OF
POWER SYSTEM TERMINALS AND BATTERY ... 33
BASIC INSPECTION 3: ABS WARNING LAMP,
BRAKE WARNING LAMP, VDC OFF INDICATOR
LAMP AND SLIP INDICATOR LAMP .................. 33
Inspection 1: Wheel Sensor Circuit ........................ 34
Inspection 2: Engine System .................................. 36
Inspection 3: ABS Actuator and Electric Unit (Con-
trol Unit) .................................................................. 36
Inspection 4: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground Circuit ............ 37
Inspection 5: ABS Motor and Motor Relay Circuit ... 38
Inspection 6: Solenoid, VDC Change-Over Valve
and Actuator Relay Circuit ...................................... 40
Inspection 7: Pressure Sensor Circuit .................... 41
Inspection 8: Steering Angle Sensor Circuit ........... 41
Inspection 9: Park/Neutral Position (PNP) Switch
Circuit ..................................................................... 43
Inspection 10: Stop Lamp Switch Circuit ................ 44
Inspection 11: Yaw Rate/Side G Sensor Circuit ..... 45

BRC-2Revision: 2006 January2006 M35/M45 Inspection 12: Brake Fluid Level Switch Circuit ...... 48
Inspection 13: RAS Control Unit Circuit (With RAS) ... 49
Inspection 14: ICC Sensor Integrated Unit Circuit
(With ICC) ............................................................... 50
Inspection 15: AWD Control Unit Circuit (AWD
Model) ..................................................................... 50
Inspection 16: CAN Communication Circuit ............ 51
Inspection 17: VDC OFF Switch Circuit .................. 51
Inspection 18: Parking Brake Switch Circuit ........... 52
Inspection 19: Warning Lamp and Indicator Lamp
Circuit ..................................................................... 53
Symptom 1 Excessive ABS Function Operation Fre-
quency .................................................................... 53
Symptom 2 Unexpected Pedal Reaction ................ 54
Symptom 3 The Braking Distance Is Long ............. 55
Symptom 4 ABS Function Does Not Operate ........ 55
Symptom 5 Pedal Vibration or ABS Operation
Sound Occurs ......................................................... 55
Symptom 6 Vehicle Jerks During VDC/TCS/ABS
Control .................................................................... 56WHEEL SENSOR ................................................... ... 57
Removal and Installation ......................................... 57
COMPONENT ...................................................... 57
REMOVAL ............................................................ 57
INSTALLATION .................................................... 57
SENSOR ROTOR ...................................................
... 59
Removal and Installation ......................................... 59
REMOVAL ............................................................ 59
INSTALLATION .................................................... 59
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 60
Removal and Installation ......................................... 60
COMPONENT ...................................................... 60
REMOVAL ............................................................ 60
INSTALLATION .................................................... 61
G-SENSOR ................................................................ 62
Removal and Installation ......................................... 62
REMOVAL ............................................................ 62
INSTALLATION .................................................... 62
STEERING ANGLE SENSOR ................................... 63
Removal and Installation ......................................... 63
REMOVAL ............................................................ 63
INSTALLATION .................................................... 63

PRECAUTIONS
BRC-3
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 January2006 M35/M45
[VDC/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS000PY
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.
WAR NING :
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 CoverNFS000PZ
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Brake SystemNFS000Q0
Recommended fluid is brake fluid “DOT 3”.
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted surface of body. If brake fluid is splashed on painted sur-
faces of body immediately wipe off then with cloth and then wash it away with water.
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
Use a flare nut wrench when removing flare nuts, and use a flare
nut torque wrench when tighten brake tube flare nuts.
When installing brake tubes, be sure to check torque.
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 con-
nectors of ABS actuator and electric unit (control unit) or the bat-
tery cable from the negative terminal.
WAR NING :
Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector.
PIIB3706J
SBR686C

BRC-4
[VDC/TCS/ABS]
PRECAUTIONS
Revision: 2006 January2006 M35/M45
Precautions for Brake ControlNFS000Q1
Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is normal condition.
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 brake booster operation, brake fluid
level, and oil 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.
ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in
wire near the control unit.
If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light.
–When replacing the following parts with parts other than genuine parts or making modifications: Suspen-
sion-related parts (shock absorber, spring, bushing, etc.), tires, wheels (other than specified sizes), brake-
related parts (pad, rotor, caliper, etc.), engine-related parts (muffler, ECM, etc.) and body reinforcement-
related parts (roll bar, tower bar, etc.).
–When driving with worn or deteriorated suspension, tires and brake-related parts.