Brake INFINITI FX35 2008 Service Manual

INTELLIGENT KEY SYSTEMBL-105
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ACTIVE TEST
List of Operation Related PartsINFOID:0000000001327850
Parts marked with × are the parts related to operation.
Monitor item [OPERATION] Description
PUSH SWITCH [ON/OFF] Displays status (Ignition knob switch ON/i
gnition knob switch OFF) as judged from
ignition knob switch signal.
KEY SW [ON/OFF] Displays status (Key inserted: ON/Key removed: OFF) as judged by key switch.
DR REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (driver
side) signal.
AS REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (passenger side) signal.
BD/TR REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (back door) signal.
IGN SW [ON/OFF] Displays status (Ignition knob ON position: ON/Ignition knob OFF position: OFF) as
judged from ignition switch signal.
ACC SW [ON/OFF] Displays status (Ignition switch ACC position: ON/Ignition switch OFF position:
OFF) as judged from ignition switch signal.
DOOR STAT SW [ON/OFF] Displays status from door unlock sensor ON/OFF condition.
STOP LAMP SW [ON/OFF] Displays status (Brake pedal depress: ON/brake pedal not depress: OFF) as
judged from stop lamp switch signal.
P RANGE SW [ON/OFF] Displays status from park/neutral position switch ON/OFF condition.
BD OPEN SW [ON/OFF] Displays status (Back door open: ON/Back door closed: OFF) as judged from back
door opener switch signal.
Monitor item Description
DOOR LOCK/UNLOCK This test is able to check all door lock actuators lock/unlock operation. These actu-
ators lock when “ON” on CONSULT-III screen is touched.
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation. The buzzer will
be activated on when “ON” on CONSULT-III screen is touched.
INSIDE BUZZER This test is able to check buzzer (built-in combination meter) operation. The buzzer
will be activated on when “ON” on CONSULT-III screen is touched.
INDICATOR This test is able to check warning lamp operation. The lamp will be turned on when
“ON” on CONSULT-III screen is touched.
Will not operate if there is a malfunction in
the area where there is a ×.
Intelligent Key
Key switch
Ignition knob switch ACC switch
Ignition switch
Door unlock sensor
Door switch
Door request switch
Inside key antenna
Out side key antenna
Intelligent Key warning buzzer Intelligent Key unit
CAN communication system
BCM
Combination meter
Steering lock unit
Stop lamp switch Detention switch
Passenger side select unlock relay
Door lock/unlock operation using Intelligent
Key remote controller button operation ×××××××
Door lock/unlock operation using door re-
quest switch operation ×××××××××
Selective door unlock function using door
request switch operation ××××××× ×
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BL-126
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Check Stop Lamp Switch
INFOID:0000000001327864
1.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch connector E210 termi- nal 1 (GY) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between stop lamp switch and fuse.
2.CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop la mp switch connector E210 terminal
1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace stop lamp switch.
3.CHECK STOP LAMP SWITCH GROUND CIRCUIT
1. Check continuity between stop lamp switch connector E210 ter- minal 2 (P) and Intelligent Key unit connector M34 terminal 26
(P/L).
2. Check continuity between stop lamp switch connector E210 ter- minal 2 (P) and ground.
OK or NG
OK >> Stop lamp switch is OK.
NG >> Repair or replace harness.
Check Park Position SwitchINFOID:0000000001327865
1.CHECK PARK POSITION SWITCH INPUT SIGNAL
1. Turn ignition knob LOCK position.
2. Check voltage between Intelligent Key unit connector and ground. 1 (GY) - Ground : Battery voltage
PIIA6811E
1 - 2
Brake pedal depressed : Continuity should exist.
Brake pedal not de-
pressed
: Continuity should not exist.
PIIA6800E
2 (P) - 26 (P/L) : Continuity should exist.
2 (P) - Ground : Continuity should not exist.
PIIA6801E
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BR-1
BRAKES
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CONTENTS
BRAKE SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution for Procedure without Cowl Top Cover ......2
Precaution for Brake System ....................................2
PREPARATION ...................................................3
Commercial Service Tool .................................... ......3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
BRAKE PEDAL .............................................. .....5
Inspection and Adjustment .................................. ......5
Component ................................................................6
Removal and Installation ...........................................6
BRAKE FLUID .....................................................8
On-Board Inspection ........................................... ......8
Drain and Refill ..........................................................8
Bleeding Brake System .............................................8
BRAKE TUBE AND HOSE ................................10
Hydraulic Circuit .................................................. ....10
Removal and Installation of Front Brake Tube and
Brake Hose .............................................................
10
Removal and Installation of Rear Brake Piping
and Brake Hose ......................................................
11
Inspection After Installation .....................................11
BRAKE MASTER CYLINDER ........................ ....12
On-Board Inspection ........................................... ....12
Component ..............................................................12
Removal and Installation .........................................12
Disassembly and Assembly ....................................13
BRAKE BOOSTER ...........................................14
On-Vehicle Service .............................................. ....14
Component ..............................................................14
Removal and Installation .........................................14
VACUUM LINES ...............................................16
Component ..............................................................16
Removal and Installation .........................................16
Inspection ................................................................16
FRONT DISC BRAKE .......................................18
On-Vehicle Inspection ......................................... ....18
Component ..............................................................18
Removal and Installation of Brake Pad ...................19
Removal and Installation of Brake Caliper Assem-
bly ........................................................................ ....
19
Disassembly and Assembly of Brake Caliper As-
sembly .....................................................................
20
Brake Burnishing Procedure ....................................23
REAR DISC BRAKE .........................................24
On-Vehicle Inspection ......................................... ....24
Component ..............................................................24
Removal and Installation of Brake Pad ...................25
Removal and Installation of Brake Caliper Assem-
bly ........................................................................ ....
25
Disassembly and Assembly of Brake Caliper As-
sembly .....................................................................
26
Brake Burnishing Procedure ....................................29
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
30
General Specification ..............................................30
Brake Pedal .............................................................30
Brake Booster ..........................................................30
Check Valve ............................................................30
Front Disc Brake ......................................................30
Rear Disc Brake ......................................................30
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BR-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612918
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 w hether 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 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 “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t 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 Procedure without Cowl Top CoverINFOID:0000000001612920
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution for Brake SystemINFOID:0000000001327604
 Clean dust on front brake and rear brake with a vacuum dust collector. Do not blow with compressed air.
 Recommended fluid is brake fluid “DOT 3”. MA-9, "
Fluids and Lubricants".
 Do not reuse drained brake fluid.
 Be careful not to splash brake fluid on painted areas.
 To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use new brake fluid.
 Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
 Use a flare nut crowfoot and torque wrench when installing brake
tube.
 When installing brake piping, be sure to check torque.
 Before working, turn ignition switch OFF and disconnect connec- tors for ABS actuator and electric unit (control unit) or battery neg-
ative terminal.
 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 mileage.
Refer to BR-23, "
Brake Burnishing Procedure" (Front disc brake),
BR-29, "
Brake Burnishing Procedure" (Rear disc brake).
WARNING:
 Clean brake pads and shoes with a waste cl oth, then clean with a dust collector.
PIIB3706J
SBR686C
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PREPARATIONBR-3
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PREPARATION
Commercial Service ToolINFOID:0000000001327605
Tool name Description
1.Flare nut crowfoot a: 10 mm (0.39 in) / 12 mm (0.47 in)
2.Torque wrench Installing each brake piping
Pin punch
Tip diameter: 4 mm (0.16 in) dia. Removing and installing reservoir tank
pin
Power tool Loosening bolts and nuts
S-NT360
ZZA0515D
PBIC0190E
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BR-4
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327606
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
BR-18
,
BR-24
BR-18
, BR-24
BR-18
, BR-24—
—
BR-20, BR-26—
—
—
BR-20, BR-26—
NVH in PR section
NVH in FFD an d RFD section
NVH in FAX, RAX and FSU, RSU section
NVH in WT section
NVH in WT section
NVH in FAX and RAX section
NVH in PS section
Possible cause and
SUSPECTED PARTS
Pads - damaged
Pads - uneven wear
Shims damaged
Rotor imbalance
Rotor damage
Rotor runout
Rotor deformation
Rotor deflection
Rotor rust
Rotor thickness variation
Drum out of round
PROPELLER SHAFT
DIFFERENTIAL
AXLE AND SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
STEERING
Symptom BRAKE Noise
××× ×× ×××
××
Shake ×××××
××
Shimmy, Judder ××××××× ××× ×
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BRAKE PEDALBR-5
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BRAKE PEDAL
Inspection and AdjustmentINFOID:0000000001327607
Play and clearance between brake pedal and floor panel with pedal depressed
1. Check brake pedal height from dash lower panel.
2. Adjust height referring to the following specifications.
ADJUSTMENT
1. Loosen stop lamp switch and ASCD cancel switch (or brake switch) by rotating it counterclockwise by 45 °.
2. Loosen lock nut (A) on input rod, then rotate input rod to set pedal to the specified height, and tighten lock nut (A). Refer to
BR-14, "
Component".
CAUTION:
Make sure the threaded end of input rod stays inside clevis.
3. With pedal pulled and held by hand, press stop lamp switch and ASCD cancel switch (or brake switch) until its threaded end con-
tacts stopper rubber.
4. With the threaded end of stop lamp switch and ASCD cancel switch (or brake switch) contacting stopper rubber, rotate switch
clockwise by 45 ° to secure.
CAUTION:
Make sure that the clearance “C” between stopper rubber
and threaded end of stop lamp switch and ASCD cancel
switch (or brake switch) is within the standard.
5. Check pedal play. CAUTION:
Make sure that stop lamps go off when pedal is released.
6. Start engine to check brake pedal depressed height.
H Brake pedal height (from dash low-
er panel top surface) 161.5
− 171.5 mm (6.358 − 6.752 in)
D Depressed pedal height [under a
force of 490 N (50 kg, 110 lb) with
engine running] More than 95 mm (3.74 in)
C 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)
A Pedal play 3 − 11 mm (0.12 − 0.43 in)
SFIA2380E
PFIA0819E
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BR-6
< SERVICE INFORMATION >
BRAKE PEDAL
Component
INFOID:0000000001327608
Removal and InstallationINFOID:0000000001327609
REMOVAL
1. Remove front kicking plate (driver side). Refer to EI-38, "Component Parts Location".
2. Remove dash side finisher (driver side). Refer to EI-38, "
Component Parts Location".
3. Remove instrument lower panel (driver side). Refer to IP-10
.
4. Remove steering column assembly. Refer to PS-12, "
Removal and Installation".
5. Remove stop lamp switch and ASCD cancel s witch (or brake switch) from pedal assembly.
6. Remove snap pin and clevis pin from brake booster clevis.
7. Remove mounting nuts and bolt from bracket, and remove brake pedal assembly from vehicle.
INSPECTION AFTER REMOVAL
1. Clevis pin 2. Snap pin 3. Brake pedal assembly
4. Stopper rubber 5. Pedal pad 6. ASCD cancel switch (Models with
ASCD)
Brake switch (Models with ICC)
7. Stop lamp switch 8. Clip
SFIA1940E
SFIA0159E
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BRAKE PEDALBR-7
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 Make sure the rivets in the upper part of brake pedal are not deformed.
 Make sure that joint length “L” of sub-bracket and sliding plate is
5.5 mm (0.217 in) or more.
 Replace brake pedal assembly if any non-standard condition is detected.
 Check clevis pin and plastic stopper for damage and deformation. Replace clevis pin if there are.
INSTALLATION
Installation in the reverse order of removal.
 After installing brake pedal assembly to the vehicle, adjust brake pedal height. Refer to BR-5, "
Inspection
and Adjustment".
SFIA2487E
SBR997
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BR-8
< SERVICE INFORMATION >
BRAKE FLUID
BRAKE FLUID
On-Board InspectionINFOID:0000000001327610
LEVEL CHECK
 Make sure the fluid level in reservoir tank is within the standard(between MAX and MIN lines).
 Visually check around reservoir tank for fluid leakage.
 If fluid level is excessively low, check brake system for leakage.
 Release parking brake pedal and see if brake warning lamp goes off. If not, check brake system for fluid leakage.
Drain and RefillINFOID:0000000001327611
CAUTION:
 Refill with new brake fluid “DOT3”.
 Do not reuse drained brake fluid.
 Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of bo dy, immediately wipe it off and them wash it away with water
immediately.
 Before working, disconnect connectors of ABS actua tor and electric unit (control unit) or battery
negative terminal.
1. Connect a vinyl tube to each bleed valve.
2. Depress brake pedal, loosen each bleed valve, and gradually remove brake fluid.
3. Make sure there is no foreign material in reservoir tank, and refill with new brake fluid.
4. Rest foot on brake pedal. Loosen bleed valve. Slowly depress pedal until it stops. Tighten bl eed valve. Release brake pedal.
Repeat this process a few times, then pause to add new brake
fluid to master cylinder. Continue until new brake fluid flows out.
5. Bleed Air. Refer to BR-8, "
Bleeding Brake System".
Bleeding Brake SystemINFOID:0000000001327612
CAUTION:
SFIA1032E
BRA0007D
SBR995
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