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F BRAKES
A
B
SECTION
BRAKE SYSTEM C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . AIRTIGHT CHECK ............................................. 16 . BR
Precautions for Supplemental Restraint System Removal ................................................................ 16
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Inspection .............................................................. 16
.
SIONER" ................................................................. 3
. OUTPUT ROD LENGTH CHECK ....................... 16 . G
Precautions for Brake System ................................. 3 . Installation ............................................................. 17
.
Wiring Diagrams and Trouble Diagnosis ................. 3 . VACUUM HOSE ....................................................... 18 .
PREPARATION .......................................................... 4. Removal and Installation ....................................... 18 .
H
Commercial Service Tools ....................................... 4 . Inspection .............................................................. 18
.
NOISE, VIBRATION, AND HARSHNESS (NVH) HOSES AND CONNECTORS ............................ 18 .
TROUBLESHOOTING ............................................... 5 . CHECK VALVE ................................................... 18 .
NVH Troubleshooting Chart .................................... 5 . FRONT DISC BRAKE .............................................. 19 . I
ON-VEHICLE SERVICE ............................................ 6 . Component ............................................................ 19
.
Checking Brake Fluid Level .................................... 6 . Pad Replacement .................................................. 19 .
Checking Brake Line ............................................... 6 . Caliper Removal .................................................... 20. J
Changing Brake Fluid .............................................. 6 . Caliper Disassembly .............................................. 20 .
Brake Burnishing Procedure ................................... 6 . Inspection .............................................................. 21
.
Bleeding Brake System ........................................... 7 . CALIPER ............................................................ 21
.
K
BRAKE HYDRAULIC LINE ....................................... 8 . ROTOR ............................................................... 21
.
Hydraulic Circuit ...................................................... 8
. Caliper Assembly ................................................... 22.
Removal .................................................................. 8
. Caliper Installation ................................................. 22
.
Inspection ................................................................ 9
. REAR DISC BRAKE ................................................ 23 . L
Installation ............................................................... 9
. Component ............................................................ 23
.
DUAL PROPORTIONING VALVE ........................... 10 . Pad Replacement .................................................. 24 .
Inspection .............................................................. 10
. Caliper Removal .................................................... 25. M
BRAKE PEDAL AND BRACKET .............................11 . Caliper Disassembly .............................................. 26 .
Removal and Installation ........................................11 . Inspection .............................................................. 27
.
Inspection ...............................................................11
. CALIPER ............................................................ 27
.
Adjustment ............................................................ 12
. ROTOR ............................................................... 27
.
BRAKE PEDAL HEIGHT .................................... 12 . Caliper Assembly ................................................... 28.
STOP LAMP SWITCH AND ASCD CANCEL Caliper Installation ................................................. 31
.
SWITCH CLEARANCE ...................................... 12 . REAR DRUM BRAKE .............................................. 32 .
MASTER CYLINDER ............................................... 13 . Components .......................................................... 32
.
Removal ................................................................ 13
. Removal ................................................................ 32
.
Disassembly .......................................................... 13
. Inspection .............................................................. 34
.
Inspection .............................................................. 14
. WHEEL CYLINDER ........................................... 34 .
Assembly ............................................................... 14
. WHEEL CYLINDER OVERHAUL ....................... 34 .
Installation ............................................................. 15
. DRUM ................................................................. 34
.
BRAKE BOOSTER .................................................. 16 . LINING ............................................................... 34
.
On-vehicle Service ................................................ 16 . Installation ............................................................. 35
.
OPERATING CHECK ......................................... 16 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 36 .
BR-1
General Specifications ........................................... 36. Drum Brake ............................................................36
.
Disc Brake ............................................................. 36
. Brake Pedal ...........................................................36
.
BR-2
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS001D3
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
q 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. D
q 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. E
q 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 harness connec-
tors. BR
Precautions for Brake System EFS001D4
q Recommended fluid is brake fluid "DOT 3". G
q Never reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas.
q To clean or wash all parts of master cylinder, disc brake cal- H
iper and wheel cylinder, use clean brake fluid.
q Never use mineral oils such as gasoline or kerosene. They
will ruin rubber parts of the hydraulic system. I
q Use flare nut wrench when removing and installing brake
tube.
q Always torque brake lines when installing. SBR686C J
q Burnish the brake contact surfaces after refinishing or
replacing drums or rotors, after replacing pads or linings, or if a soft pedal occurs at very low mile-
age. K
Refer to BR-6, "Brake Burnishing Procedure".
WARNING:
q Clean brake pads and shoes with a waste cloth, then wipe with a dust collector. L
Wiring Diagrams and Trouble Diagnosis EFS001D5
When you read wiring diagrams, refer to the following:
M
q GI-13, "How to Read Wiring Diagrams"
q PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"
BR-3
PREPARATION
PREPARATION PFP:00002
Commercial Service Tools EFS001D6
Tool name Description
1 Flare nut crowfoot Removing and installing brake piping
2 Torque wrench a: 10 mm (0.39 in)
S-NT360
Brake fluid pressure gauge Measuring brake fluid pressure
NT151
BR-4
NVH Troubleshooting Chart
X: Applicable
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
Symptom
SUSPECTED PARTS
Possible cause and
Reference page
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
BRAKE
Shimmy, Judder
Shake
Noise
Pads - damaged BR-19, BR-24
X
Pads - uneven wear BR-19, BR-24
X
Shims damaged BR-19, BR-23
BR-5
X
Rotor imbalance --
X
X
Rotor damage --
X
Rotor runout BR-21, BR-27
X
Rotor deformation --
X
X Rotor deflection --
Rotor rust --
X
Rotor thickness variation BR-21, BR-27
X
DRIVE SHAFT FAX-4, "NVH Troubleshooting Chart"
X
X
AXLE FAX-4, "NVH Troubleshooting Chart"
X
X
X
SUSPENSION FSU-4, "NVH Troubleshooting Chart"
X
X
X
TIRES FSU-4, "NVH Troubleshooting Chart"
X
X
X
PFP:00003
ROAD WHEEL FSU-4, "NVH Troubleshooting Chart"
X
X
X
EFS001D7
STEERING PS-6, "NVH Troubleshooting Chart"
X
X
X
BR
M
G
H
D
C
K
E
B
A
L
J
I
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE PFP:00000
Checking Brake Fluid Level EFS001D8
q Check fluid level in reservoir tank. It should be between Max and
Min lines on reservoir tank.
q If fluid level is extremely low, check brake system for leaks.
q Release parking brake lever and see if brake warning lamp goes
off. If not, check brake system for leaks.
SBR451D
Checking Brake Line EFS001D9
CAUTION:
If leakage occurs around joints, retighten or, if necessary,
replace damaged parts.
1. Check brake lines (tubes and hoses) for cracks, deterioration or
other damage. Replace any damaged parts.
2. Check for oil leakage by fully depressing brake pedal while
engine is running.
SBR389C
Changing Brake Fluid EFS001DA
CAUTION:
q Refill with new brake fluid "DOT 3".
q Always keep fluid level higher than minimum line on reservoir tank.
q Never reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
1. Clean inside of reservoir tank, and refill with new brake fluid.
2. Connect a vinyl tube to each air bleeder valve.
3. Drain brake fluid from each air bleeder valve by depressing
brake pedal.
4. Refill until brake fluid comes out of each air bleeder valve.
Use same procedure as in bleeding hydraulic system to refill
brake fluid. Refer to BR-7, "Bleeding Brake System" .
SBR419C
Brake Burnishing Procedure EFS001DB
Burnish the brake contact surfaces according to the following procedure after refinishing or replacing drums or
rotors, after replacing pads or linings, or if a soft pedal occurs at very low mileage.
CAUTION:
Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).
BR-6
ON-VEHICLE SERVICE
2. Use medium brake pedal/foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH). Adjust
brake pedal/foot pressure so that vehicle stopping time equals 3 to 5 seconds. A
3. To cool the brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.
4. Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.
B
Bleeding Brake System EFS001DC
CAUTION:
q Carefully monitor brake fluid level at master cylinder during C
bleeding operation.
q Fill reservoir with new brake fluid "DOT 3". Make sure it is
full at all times while bleeding air out of system.
D
q Place a container under master cylinder to avoid spillage of
brake fluid.
q For models with ABS, turn ignition switch OFF and discon- E
nect ABS actuator and electric unit connectors or battery
ground cable.
q Bleed air in the following order.
Right rear brake Left front brake Left rear brake
SBR995 BR
Right front brake
1. Connect a transparent vinyl tube to air bleeder valve. G
2. Fully depress brake pedal several times.
3. With brake pedal depressed, open air bleeder valve to release
H
air.
4. Close air bleeder valve.
5. Release brake pedal slowly.
I
6. Repeat steps 2. through 5. until clear brake fluid comes out of air
bleeder valve.
7. Tighten air bleeder valve. J
SBR419C
Torque air bleeder valve
Front and rear disc brake
K
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