2007 INFINITI M35 brake

BR-28
REAR DISC BRAKE
Revision: 2007 April2007 M35/M45
REAR DISC BRAKEPFP:44000
On-Board InspectionNFS000SH
PAD WEAR INSPECTION

Check pad thickness from an inspection hole on cylinder body.
Check using a scale if necessary.
ComponentsNFS000SI
Standard
Standard thickness : 8.5 mm (0.335 in)
Repair limit thickness : 2.0 mm (0.079 in)
BRA0010D
1. Union bolt 2. Brake hose 3. Copper washer
4. Cap 5. Bleed valve 6. Sliding pin bolt
7. Cylinder body 8. Piston seal 9. Piston
10. Piston boot 11. Retaining ring 12. Inner shim cover
13. Inner shim 14. Inner pad 15. Pad retainer
16. Outer pad 17. Outer shim 18. Sliding pin boot
19. Bushing 20. Torque member mounting bolt 21. Washer
22. Torque member 23. Pad wear sensor 24. Inner pad (RH)
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
1: Apply rubber grease.
2: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.
PFIA0705J

REAR DISC BRAKE
BR-29
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2007 April2007 M35/M45
WARNING:
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-33, "
BRAKE
BURNISHING PROCEDURE" .
Removal and Installation of Brake PadNFS000SJ
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 silicone-based grease to between pad 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-28, "
Components" .
5. Check rear disc brake for drag.
6. Install tires to vehicle.
3: Apply polyglycol ether based lubricant.
: Apply brake fluid.
PFIA0273E

BR-30
REAR DISC BRAKE
Revision: 2007 April2007 M35/M45
Removal and Installation of Brake Caliper AssemblyNFS000SK
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 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.
Refer to BR-28, "
Components" .
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-12, "
Removal and Installation
of Rear Brake Tube and Brake Hose" .
4. Refill with new brake fluid and bleed air. Refer to BR-10, "
Bleed-
ing Brake System" .
5. Check rear disc brake for drag.
6. Install tires to vehicle.
SFIA2972E
SDIA2638E
SFIA2049E

REAR DISC BRAKE
BR-31
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2007 April2007 M35/M45
Disassembly and Assembly of Brake Caliper AssemblyNFS000SL
NOTE:
Do not remove torque member, pads, shims, shim cover, 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 boots 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.
To r q u e M e m b e r
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

BR-32
REAR DISC BRAKE
Revision: 2007 April2007 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-28, "
Compo-
nents" .
SFIA2278E
SFIA2498E
SFIA2279E
SFIA2280E

REAR DISC BRAKE
BR-33
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2007 April2007 M35/M45
DISC ROTOR INSPECTION
Visual Inspection
Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace if there are.
Runout Inspection
1. Fix disc rotor to wheel hub using wheel nuts (2 or more posi-
tions).
2. Inspect runout using dial gauge. [Measured at 10 mm (0.39 in)
inside disc edge.]
NOTE:
Before measuring, make sure that wheel bearing axial end play
is within the specification. Refer to RAX-5, "
WHEEL BEARING
INSPECTION" .
3. When runout exceeds limit value, displace mounting positions of
disc rotor by one hole. And then find a position of the minimum value for runout.
4. Replace disc rotor if it is outside repair limit after performing the above operation.
Thickness Inspection
Check the thickness of the disc rotor using a micrometer. Replace
disc rotor if the thickness is under the wear limit.
BRAKE BURNISHING PROCEDURE
Burnish contact surfaces between disc rotors and pads according to following procedure after refinishing or
replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
CAUTION:

Be careful of vehicle speed because the brake does not operate easily until pad and disc rotor are
securely fitted.

Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive the vehicle on a straight, flat road.
2. Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3. Drive without depressing brake for a few minutes to cool the brake.
4. Repeat steps 1 to 3 until pad and disc rotor are securely fitted.Runout limit : 0.055 mm (0.0022 in)
(With it attached to the vehicle)
BRA0697D
Standard thickness : 16.0 mm (0.631 in)
Wear limit : 14.0 mm (0.551 in)
Thickness variation
(Measured at 8 positions): 0.015 mm (0.0006in)
SFIA2284E

BR-34
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2007 April2007 M35/M45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsNFS000SM
Unit: mm (in)
Brake PedalNFS000SN
Unit: mm (in)
Brake BoosterNFS000SO
Vacuum type
Unit: mm (in)
Check ValveNFS000SP
Front Disc BrakeNFS000SQ
Unit: mm (in)
Rear Disc BrakeNFS000SR
Unit: mm (in) Front brakeCylinder bore diameter 45.0 (1.772) × 2
Pad length × width × thickness 132.0 × 50.0 × 11.0 (5.20 × 1.969 × 0.433)
Rotor outer diameter × thickness 320 × 28 (12.60 × 1.10)
Rear brake 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 booster Diaphragm diameter 255 (10)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface) 157 − 167 (6.18 − 6.57)
Depressed pedal height
[under a force of 490 N (50 kg, 110 lb) with engine running]90 (3.54) or more
Clearance between threaded end of the stop lamp switch/brake
switch and bracket 0.74 − 1.96 (0.0291 −0.0772)
Pedal play3 − 11 (0.12 − 0.43)
Input rod installation standard dimension 125 (4.92)
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 padStandard thickness 11.0 (0.433)
Repair limit thickness 2.0 (0.079)
Disc rotorStandard thickness 28.0 (1.102)
Wear limit 26.0 (1.024)
Thickness variation (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.035 (0.0014)
Brake padStandard thickness 8.5 (0.335)
Repair limit thickness 2.0 (0.079)
Disc rotorStandard thickness 16.0 (0.631)
Wear limit 14.0 (0.551)
Thickness variation (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.055 (0.0022)

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION BRC
A
B
BRC
Revision: 2007 April2007 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
Functions .................................................................. 7
ABS ....................................................................... 7
EBD ....................................................................... 7
TCS ....................................................................... 8
VDC ....................................................................... 8
ECD ....................................................................... 8
Operation That Is Not "System Error" ...................... 8
ABS ....................................................................... 8
TCS ....................................................................... 8
VDC ....................................................................... 8
Hydraulic Circuit Diagram ........................................ 9
CAN Communication ................................................ 9
SYSTEM DESCRIPTION ...................................... 9
TROUBLE DIAGNOSIS ............................................ 10
Fail-Safe Function .................................................. 10
ABS, EBD SYSTEM ............................................ 10
VDC/TCS ............................................................ 10
How to Perform Trouble Diagnoses ....................... 10
BASIC CONCEPT ............................................... 10
DIAGNOSIS FLOW CHART ................................ 11
ASKING COMPLAINTS ...................................... 12
EXAMPLE OF DIAGNOSIS WORKSHEET ........ 12
Component Parts Location ..................................... 13
Schematic .............................................................. 14Wiring Diagram — VDC — ..................................... 15
Control Unit Input/Output Signal Standard ............. 21
REFERENCE VALUE FROM CONSULT-II ......... 21
CONSULT-II Functions (ABS) ................................ 23
CONSULT-II MAIN FUNCTION ........................... 23
CONSULT-II SETTING PROCEDURE ................ 23
Self-Diagnosis ........................................................ 24
OPERATION PROCEDURE ................................ 24
ERASE MEMORY ............................................... 24
DISPLAY ITEM LIST ........................................... 25
Data Monitor ........................................................... 28
OPERATION PROCEDURE ................................ 28
DISPLAY ITEM LIST ........................................... 28
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
TROUBLE DIAGNOSIS FOR SYSTEM .................... 34
Wheel Sensor Circuit .............................................. 34
INSPECTION PROCEDURE .............................. 34
Engine System ....................................................... 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) ........ 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground Circuit ..................................... 37
INSPECTION PROCEDURE .............................. 37
ABS Motor and Motor Relay Circuit ........................ 38
INSPECTION PROCEDURE .............................. 38
Solenoid, VDC Change-Over Valve and Actuator
Relay Circuit ........................................................... 39