REAR DISC BRAKEBR-41
< REMOVAL AND INSTALLATION >
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9. Remove the disc brake rotor. If reusing the disc brake rotor apply matching marks as shown.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten components to specification. Refer to BR-39, "BRAKE CALIPER ASSEMBLY : Exploded View"
.
• Align the L-shaped pin on the brake hose in the hole in the brake
caliper, then install the brake hose with new copper sealing wash-
ers (1) and tighten the union bolt (A) to the specified torque. Refer
to BR-23, "REAR : Exploded View"
.
CAUTION:
Do not reuse copper sealing washers.
• Refill with new brake fluid and bleed air fr om the brake hydraulic system. Refer to BR-14, "Bleeding Brake
System".
SDIA2638E
AWFIA0795ZZ
Revision: November 20132014 Altima NAM
BR-42
< UNIT DISASSEMBLY AND ASSEMBLY >
FRONT DISC BRAKE
UNIT DISASSEMBLY AND ASSEMBLY
FRONT DISC BRAKE
BRAKE CALIPER ASSEMBLY
BRAKE CALIPER ASSEMBLY : Exploded ViewINFOID:0000000009463720
BRAKE CALIPER ASSEMBLY : DisassemblyINFOID:0000000009463721
1. Place a wooden block in the brake caliper as shown, and blowair into the union bolt hole to remove the piston and piston boot.
WARNING:
Do not get fingers caught be tween the piston and wooden
block.
1. Union bolt 2. Copper sealing washers 3. Brake hose
4. Cap 5. Bleeder valve 6. Sliding pin bolt
7. Piston seal 8. Piston 9. Piston boot
10. Brake caliper 11. Upper sliding pin 12. Lower sliding pin
13. Torque member bolt 14. Washers 15. Sliding pin boot
16. Lower sliding pin bushing 17 Torque member R. Rubber grease
NOTE:
RH side caliper shown, LH side caliper similar.
AWFIA0936ZZ
BRD0041D
Revision: November 20132014 Altima NAM
FRONT DISC BRAKEBR-43
< UNIT DISASSEMBLY AND ASSEMBLY >
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2. Remove the piston seal from the brake caliper using a suitable tool. Discard the piston seal.
CAUTION:
• Be careful not to damage the cylinder inner wall.
• Do not reuse the piston seal.
BRAKE CALIPER ASSEMBLY : In spection After DisassemblyINFOID:0000000009463722
BRAKE CALIPER
Check the inner wall of brake caliper for co rrosion, wear, and damage. Replace as necessary.
CAUTION:
Clean the brake caliper using new br ake fluid. Do not use mineral oils such as gasoline or kerosene.
TORQUE MEMBER
Check torque member for wear, cracks, and damage. Replace as necessary.
PISTON
Check the piston surface for corrosion, wear, and damage. Replace as necessary.
CAUTION:
The piston sliding surface is plated . Do not polish with sandpaper.
SLIDING PIN, SLIDING PIN BOOT, SLIDING PIN BOLT
Check the sliding pin, sliding pin bolt, and sliding pin boot for wear, damage, and cracks. Replace as neces-
sary.
BRAKE CALIPER ASSEMBLY : AssemblyINFOID:0000000009463723
CAUTION:
Use NISSAN Rubber Grease during assembly.
1. Apply rubber grease to new piston seal (1), and install on brake caliper.
CAUTION:
Do not reuse piston seal.
2. Apply rubber grease to new piston boot (1). Cover the piston (2) end with new piston boot, and then install cylinder side lip on
new piston boot securely into a groove on brake caliper.
CAUTION:
Do not reuse piston boot.
JPFIA0038ZZ
JPFIA0039ZZ
JPFIA0040ZZ
Revision: November 20132014 Altima NAM
REAR DISC BRAKEBR-45
< UNIT DISASSEMBLY AND ASSEMBLY >
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REAR DISC BRAKE
BRAKE CALIPER ASSEMBLY
BRAKE CALIPER ASSEMBLY : Exploded ViewINFOID:0000000009463724
BRAKE CALIPER ASSEMBLY : DisassemblyINFOID:0000000009463725
1. Remove the retaining ring from brake caliper using a suitable tool as shown. Discard the retaining ring.
CAUTION:
Do not reuse retaining ring.
1. Union bolt 2. Brake hose 3. Copper sealing washers
4. Cap 5. Bleeder valve 6. Lower sliding pin bolt
7. Upper sliding pin bolt 8. Upper sliding pin bushing 9. Brake caliper
10. Piston seal 11. Piston 12. Piston boot
13. Retaining ring 14. Sliding pin boot 15. Torque member bolt
16. Washers 17 Torque member A. Molykote AS-880N grease
B. Rubber grease
NOTE:
RH side caliper shown, LH side caliper similar.
AWFIA0937ZZ
SBR028A
Revision: November 20132014 Altima NAM
BR-46
< UNIT DISASSEMBLY AND ASSEMBLY >
REAR DISC BRAKE
2. Place a wooden block in the brake caliper as shown, and blowair into the union bolt hole to the remove piston and piston boot.
WARNING:
Do not get fingers caught be tween the piston and wooden
block.
3. Remove the piston seal from the brake caliper using a suitable tool. Discard the piston seal.
CAUTION:
• Be careful not to damage the cylinder inner wall.
• Do not reuse the piston seal.
BRAKE CALIPER ASSEMBLY : In spection After DisassemblyINFOID:0000000009463726
BRAKE CALIPER
Check the inner wall of the cylinder for corrosion, wear, and damage. Replace as necessary.
CAUTION:
Clean the brake caliper using new br ake fluid. Do not use mineral oils such as gasoline or kerosene.
TORQUE MEMBER
Check the torque member for wear, cr acks, and damage. Replace as necessary.
PISTON
Check the piston surface for corrosion, wear, and damage. Replace as necessary.
CAUTION:
The piston sliding surface is plated . Do not polish with sandpaper.
SLIDING PIN BOLT, SLIDING PIN BOOT
Check the sliding pin bolt and sliding pin boot fo r wear, damage, and cracks. Replace as necessary.
BRAKE CALIPER ASSEMBLY : AssemblyINFOID:0000000009463727
CAUTION:
Use NISSAN Rubber Grease during assembly.
1. Apply rubber grease to new piston seal (1), and install on brake caliper.
CAUTION:
Do not reuse piston seal.
BRD0041D
JPFIA0038ZZ
JPFIA0039ZZ
Revision: November 20132014 Altima NAM
BRC-4
< PRECAUTION >[VDC/TCS/ABS]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951721
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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for Brake SystemINFOID:0000000009463735
WARNING:
Clean any dust from the front brake and rear br ake using a vacuum dust collector. Do not blow by
compressed air.
• Brake fluid use refer to BR-8, "Inspection"
.
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off immediately and wash with water if it gets on a painted surface.
• Always confirm the specified tightening torque when installing the brake pipes.
• After pressing the brake pedal more deeply or harder t han normal driving, such as air bleeding, check each
item of brake pedal. Adjust brake pedal if it is outside the standard value.
• Do not use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and cause
improper operation.
• Always loosen the brake tube flar e nut with a flare nut wrench.
• Tighten the brake tube flare nut to the specified torque with a crow-
foot (A) and torque wrench (B).
• Always connect the battery terminal when moving the vehicle.
• Turn the ignition switch OFF and disconnect the ABS actuator and
electric unit (control unit) harness connector or the battery negative
terminal before performing the work.
• Check that no brake fluid leakage is present after replacing the parts.
JPFIA0001ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BRC-6
< PRECAUTION >[VDC/TCS/ABS]
PRECAUTIONS
• Do not make a bypass connection to repaired area. (If the circuit is
bypassed, characteristics of twisted wire will be lost.)
Precaution for WorkINFOID:0000000009463738
• When removing or disassembling each component, be careful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a s hop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusable part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
- Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
PKIA0307E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BRC-26
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
• Wheel spin status of drive wheel is detected by wheel sensor of 4
wheels. Engine output and transmission shift status is controlled
so that slip rate of drive wheels is in appropriate level. When wheel
spin occurs on drive wheel, ABS actuator and electric unit (control
unit) perform brake force control of LH and RH drive wheels (apply
brake force by increasing brake fluid pressure of drive wheel) and
decrease engine torque by engine torque control. Wheel spin
amount decreases. Engine torque is controlled to appropriate
level.
• TCS function can be switched to non-operational status (OFF) by operating VDC OFF switch. In this case, VDC OFF indicator lamp
turns ON.
• SLIP indicator lamp blinks while TCS function is in operation and
indicates to the driver that the function is in operation.
• CONSULT can be used to diagnose the system.
• Fail-safe function is adopted. When a malfunction occurs in TCS
function, the control is sus pended for VDC function and TCS func-
tion. However, ABS function and EBD function operate normally.
Refer to BRC-41, "Fail-safe"
.
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0139GB
Component Signal description
ECM Transmits the following signals to ABS actuator and electric unit (control unit) via CAN commu-
nication.
• Accelerator pedal position signal
• Engine speed signal
• Target throttle position signal
TCM Transmits the current gear positi
on signal to ABS actuator and el ectric unit (control unit) via
CAN communication.
Steering angle sensor Transmits the steering angle sensor signal to ABS actuator and electric unit (control unit) via
CAN communication.
Combination meter Transmits the following signals to ABS actuator and electric unit (control unit) via CAN commu-
nication.
• Brake fluid level switch signal
• Parking brake switch signal
Receives the following signals from ABS actuator and electric unit (control unit) via CAN com-
munication.
• VDC OFF indicator lamp signal
• SLIP indicator lamp signal
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM