2006 INFINITI FX35 floor

BL-232
BODY REPAIR
Revision: 2006 December 2006 FX35/FX45
1. Hoodledge assembly 16. Rear floor rear
2. Upper front hoodledge 17. Rear floor seat belt anchor reinforcement
3. Hoodledge reinforcement 18. Rear floor side
4. Upper hoodledge 19. Spare tire clamp bracket
5. Upper dash extension 20. Front side member
6. Upper dash crossmember assembly 21. Front side member rear reinforcement
7. Upper dash assembly 22. Front side member front extension
8. Front cowl top assembly 23. Front side member closing plate
9. Lower dash 24. Front side member outrigger assembly (RH&LH)
10. Front floor center 25. Front crossmember
11. Front floor 26. 2ND rear crossmember
12. Front floor reinforcement 27. Rear side member assembly
13. Inner sill 28. Rear side member extension
14. Lower rear seat crossmember 29. Rear center crossmember assembly
15. Rear floor front 30. Rear end crossmember assembly

BODY REPAIR BL-237
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Revision: 2006 December 2006 FX35/FX45
UNDERCOATING
The underside of the floor and wheelhouse are undercoated to prevent rust, vibration, noise and stone chip-
ping. Therefore, when such a panel is replaced or repaired, apply undercoating to that part. Use an undercoat-
ing which is rust preventive, soundproof, vibration-proof, shock-resistant, adhesive, and durable.
Precautions in Undercoating
1. Do not apply undercoating to any place unless specified (such as the areas above the muffler and three
way catalyst which are subjected to heat).
2. Do not undercoat the exhaust pipe or other parts which become hot.
3. Do not undercoat rotating parts.
4. Apply bitumen wax after applying undercoating.
5. After putting seal on the vehicle, put undercoating on it.
SIIA2252E

BODY REPAIR BL-281
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Revision: 2006 December 2006 FX35/FX45
REAR FLOOR REAR

Work after rear panel assembly and rear end crossmember assembly have been removed.
SIIA2284E

BODY REPAIR BL-283
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Revision: 2006 December 2006 FX35/FX45
SIIA2286E
Change parts
Rear floor rear
Spare tire clamp bracket

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
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SECTION BR
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BR
Revision: 2006 December 2006 FX35/FX45
BRAKE SYSTEM
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
PREPARATION ...................................................... ..... 4
Commercial Service Tools ................................... ..... 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 5
NVH Troubleshooting Chart ................................ ..... 5
BRAKE PEDAL ..................................................... ..... 6
Inspection and Adjustment .................................. ..... 6
PLAY AND CLEARANCE BETWEEN BRAKE
PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED ................................................... ..... 6
ADJUSTMENT ................................................. ..... 6
Components ........................................................ ..... 7
Removal and Installation ..................................... ..... 7
REMOVAL ........................................................ ..... 7
INSPECTION AFTER REMOVAL .................... ..... 8
INSTALLATION ................................................ ..... 8
BRAKE FLUID ....................................................... ..... 9
On-Board Inspection ........................................... ..... 9
LEVEL CHECK ................................................ ..... 9
Drain and Refill .................................................... ..... 9
Bleeding Brake System ....................................... ... 10
BRAKE TUBE AND HOSE .................................... ....11
Hydraulic Circuit .................................................. .... 11
Removal and Installation of Front Brake Tube and
Brake Hose ......................................................... .... 11
REMOVAL ........................................................ .... 11
INSTALLATION ................................................ .... 11
Removal and Installation of Rear Brake Piping and
Brake Hose ......................................................... ... 12
REMOVAL ........................................................ ... 12
INSTALLATION ................................................ ... 12
Inspection After Installation ................................. ... 12
BRAKE MASTER CYLINDER ............................... ... 13
On-Board Inspection ........................................... ... 13 LEAK INSPECTION .........................................
... 13
Components ........................................................ ... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSTALLATION ................................................ ... 14
Disassembly and Assembly ................................. ... 14
DISASSEMBLY ................................................ ... 14
ASSEMBLY ...................................................... ... 14
BRAKE BOOSTER ................................................ ... 15
On-Vehicle Service .............................................. ... 15
OPERATING CHECK ....................................... ... 15
AIRTIGHT CHECK ........................................... ... 15
Components ........................................................ ... 15
Removal and Installation ..................................... ... 16
REMOVAL ........................................................ ... 16
INSPECTION AFTER REMOVAL .................... ... 16
INSTALLATION ................................................ ... 16
VACUUM LINES .................................................... ... 17
Components ........................................................ ... 17
Removal and Installation ..................................... ... 17
Inspection ............................................................ ... 18
VISUAL INSPECTION ...................................... ... 18
CHECK VALVE INSPECTION .......................... ... 18
FRONT DISC BRAKE ............................................ ... 19
On-Vehicle Inspection .......................................... ... 19
PAD WEAR INSPECTION ................................ ... 19
Components ........................................................ ... 19
Removal and Installation of Brake Pad ............... ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 20
Removal and Installation of Brake Caliper Assembly ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 21
Disassembly and Assembly of Brake Caliper
Assembly ............................................................. ... 21
DISASSEMBLY ................................................ ... 21
INSPECTION AFTER DISASSEMBLY ............. ... 22
ASSEMBLY ...................................................... ... 22

BR-6
BRAKE PEDAL
Revision: 2006 December 2006 FX35/FX45
BRAKE PEDALPFP:46501
Inspection and AdjustmentNFS000LS
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-15, "
Components" .
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
lower 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

BRAKE BOOSTER BR-15
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Revision: 2006 December 2006 FX35/FX45
BRAKE BOOSTERPFP:47200
On-Vehicle ServiceNFS000M5
OPERATING CHECK
With engine stopped, change the vacuum to the atmospheric pres-
sure by depressing brake pedal several times. Then with brake
pedal fully depressed, start engine and when the vacuum pressure
reaches the standard, make sure the clearance between brake pedal
and floor panel decreases.
CAUTION:
Depressing pedal interval is approximately 5 seconds.
AIRTIGHT CHECK

Run engine at idle for approximately 1 minute, and stop it after
applying vacuum to booster. Depress brake pedal normally to
change the vacuum to the atmospheric pressure. Make sure dis-
tance between brake pedal and floor panel gradually increases.

Depress brake pedal while engine is running, and stop
engine with pedal depressed. The pedal stroke should not
change after holding pedal down for 30 seconds.
CAUTION:
Depressing brake pedal is interval is approximately at intervals
5 seconds.
ComponentsNFS000OB
BRA0037D
SBR365AA
1. Reservoir tank 2. Master cylinder 3. Gasket
4. Brake booster
Refer to GI-11, "
Components" , for the symbols in the figure.
PFIA0817E

EC-172
[VQ35DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 December 2006 FX35/FX45
5. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER
Refer to EC-172, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning air fuel ratio sensor 1.
6. CHECK INTERMITTENT INCIDENT
Perform EC-148, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component InspectionNBS003TG
AIR FUEL RATIO (A/F) SENSOR 1 HEATER
Check resistance between terminals 3 and 4.
Check continuity between terminals 3 and 1, 2, 5, 6, terminals 4 and
1, 2, 5, 6.
If NG, replace the air fuel ratio (A/F) sensor 1.
CAUTION:

Discard any air fuel ratio (A/F) sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.

Before installing new air fuel ratio (A/F) sensor, clean
exhaust system threads using Heated Oxygen Sensor
Thread Cleaner tool J-43897-18 or J-43897-12 and approved
anti-seize lubricant.
Removal and InstallationNBS003TH
AIR FUEL RATIO (A/F) SENSOR 1
Refer to EM-26, "EXHAUST MANIFOLD AND THREE WAY CATALYST" .
Resistance: 2.3 - 4.3
Ω [at 25 °C (77 °F)]
Continuity should not exist.
PBIB1684E