INFINITI FX35 2004 Service Manual

BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
5. CHECK SELF-DIAGNOSTIC RESULTS 1
Perform self-diagnosis of ABS actuator and electric unit (control unit).
Are self-diagnosis items displayed?
YES >> Check the corresponding items, make repairs, and re-perform ABS actuator and electric unit (con-
trol unit) self-diagnosis.
NO >> GO TO 6.
6. CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connector E56 and ECM connector, check termi-
nals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace
connector.
2. Securely reconnect connector and perform self-diagnosis.
OK or NG
OK >> If poor connect, damaged, open or short circuit is found, repair or replace connector terminal.
NG >> GO TO 7.
7. CHECK SELF-DIAGNOSTIC RESULTS 2
Re-perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis items displayed?
YES >> Repair or replace malfunctioning items.
NO >> GO TO 8.
8. CHECK CIRCUIT BETWEEN ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) AND ECM
Check CAN communication system. Refer to BRC-53, "
Inspection 14: CAN Communication System" .
OK or NG
OK >> INSPECTION END
NG >> Connect connectors, and re-perform ABS actuator and electric unit (control unit) self-diagnosis.

WHEEL SENSORS
BRC-57
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45
WHEEL SENSORSPFP:47910
Removal and InstallationAFS001Z3
REMOVAL
1. Disconnect wheel sensor connector.
2. Remove wheel sensor mounting bolts, grommets (front sensor) and clip.
3. Remove wheel sensor.
CAUTION:
Be careful of the following when installing sensor.

As much as possible, avoid rotating sensor when removing it. Pull sensors out without pulling on
sensor harness.

Take care to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before
removing front wheel hub and bearing assembly and rear final drive. This is to avoid damage to
sensor wiring and loss of sensor function.
INSTALLATION
To install, follow procedure for removal in reverse order.
CAUTION:
Be careful of the following when installing sensor. Tighten installation bolts to specified torques.

When installing, make sure there is no foreign material such as iron chips on pick-up and mount-
ing hole of sensor. Make sure no foreign material has been caught in the sensor rotor. Remove
any foreign material and clean the mount.

When installing front sensor, be sure to press rubber grommets in until they lock at the three loca-
tions shown in the figure (2 at shock absorbers and 1 at body panel). When installed, harness
must not be twisted. White line on harness must be visible from front.
PFIA0600E

BRC-58
[VDC/TCS/ABS]
WHEEL SENSORS
Revision: 2004 November 2004 FX35/FX45

When installing rear sensor, attach harness at rear suspension member securely. Besides, har-
ness must not be twisted when installed.

SENSOR ROTOR
BRC-59
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45
SENSOR ROTORPFP:47970
Removal and InstallationAFS001Z4
REMOVAL
Front
Sensor rotor cannot be disassembled. To replace sensor rotor, replace wheel hub and bearing assembly.
Refer to FA X - 4 , "
Removal and Installation" (2WD model), FA X - 1 0 , "Removal and Installation" (AWD model).
Rear

Follow procedure below to remove rear sensor rotor.
–Remove side flange. Refer to RFD-9, "SIDE OIL SEAL" .
–Using a bearing replacer and puller, remove sensor rotor from side flange.
INSTALLATION
Front
Sensor rotor cannot be disassembled. To replace sensor rotor, replace wheel hub and bearing assembly.
Refer to FA X - 4 , "
Removal and Installation" (2WD model), FA X - 1 0 , "Removal and Installation" (AWD model).
Rear

Follow procedure below to install rear sensor rotor.
–Using a drift (special service tool), press rear sensor rotor onto
side flange.
–Install side flange. Refer to RFD-9, "SIDE OIL SEAL" .
BRG1210D

BRC-60
[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Revision: 2004 November 2004 FX35/FX45
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)PFP:47660
Removal and InstallationAFS001Z5
REMOVAL
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
3. Remove LH side fender protector. Refer to EI-25, "
FENDER PROTECTOR" .
4. Remove ABS actuator and electric unit (control unit) mounting nuts.
5. Remove ABS actuator and electric unit (control unit) from vehicle.
CAUTION:
Be careful of the following when removing ABS actuator and electric unit (control unit).

If the part number on the part number label (pasted on actuator upper surface) is the same, ABS
actuator and electric unit (control unit) cannot be used on another vehicle.
If it is used on another vehicle, ABS warning lamp, SLIP indicator lamp and VDC OFF indicator
lamp may turn ON or VDC/TCS/ABS may not operate normally.
When replacing ABS actuator and electric unit (control unit), must use new service parts.

Before servicing, disconnect battery cables.

To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-
aged. To install, use a flare nut torque wrench (commercial service tool) and tighten to the speci-
fied torque.

Do not apply excessive impact to actuator, such as dropping it.

Do not remove and install ABS actuator and electric unit (control unit) by holding harness.
INSTALLATION
To install, follow procedure for removal in reverse order.
CAUTION:
Be careful of the following when installing ABS actuator and electric unit (control unit).

Tighten the mounting bolts and nuts to the specified torque.

After the work, bleed air from brake piping. Refer to BR-10, "Bleeding Brake System" .
PFIA0601E

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
BRC-61
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45

After installing vehicle harness connector in the actuator, make sure connector is securely locked.

When replacing ABS actuator and electric unit (control unit), calibrate Steering angle sensor neu-
tral position and Decel G sensor. Refer to BRC-6, "
ON-VEHICLE SERVICE" .
NOTE:

After performing above works, calibrate decel G-sensor (AWD model). Refer to BRC-6, "Calibration of
Decel G-sensor (AWD Model)" .

In the case that ABS actuator and electric unit (control unit) are replaced, make sure to adjust position of
steering angle sensor. Refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Position" .

BRC-62
[VDC/TCS/ABS]
G SENSOR
Revision: 2004 November 2004 FX35/FX45
G SENSORPFP:47930
Removal and InstallationAFS001TG
REMOVAL
1. Remove center console. Refer to IP-12, "(H) Center Console" .
2. Disconnect G-sensor harness connector.
3. Remove G-sensor mounting bolts. Then remove G-sensor from
vehicle.
CAUTION:

Do not drop or strike G-sensor, because it has little endur-
ance to impact.

Do not use power tool etc., because G-sensor is weak for
the impact.
INSTALLATION
To install, follow procedure for removal in reverse order.
CAUTION:

Do not drop or strike G-sensor, because it has little endurance to impact.
NOTE:

After performing above works, calibrate decel G-sensor (AWD model). Refer to BRC-6, "Calibration of
Decel G-sensor (AWD Model)" .
PFIA0602E

STEERING ANGLE SENSOR
BRC-63
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45
STEERING ANGLE SENSORPFP:25554
Removal and InstallationAFS0021I
REMOVAL
1. Remove spiral cable assembly. Refer to SRS-38, "SPIRAL CABLE" .
2. Remove steering angle sensor from spiral cable assembly.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After work, make sure to adjust neutral position of steering angle sensor. Refer to BRC-6, "
Adjustment of
Steering Angle Sensor Neutral Position" .
SFIA1404E

BRC-64
[VDC/TCS/ABS]
STEERING ANGLE SENSOR
Revision: 2004 November 2004 FX35/FX45

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION CO
A
CO
Revision: 2004 November 2004 FX35/FX45
ENGINE COOLING SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Liquid Gasket .................................. 3
REMOVAL OF LIQUID GASKET SEALING .......... 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 6
OVERHEATING CAUSE ANALYSIS .......................... 7
Troubleshooting Chart .............................................. 7
COOLING SYSTEM .................................................... 9
Cooling Circuit .......................................................... 9
System Drawing ..................................................... 10
ENGINE COOLANT ...................................................11
Inspection ................................................................ 11
LEVEL CHECK .................................................... 11
CHECKING COOLING SYSTEM FOR LEAKS .... 11
Changing Engine Coolant ....................................... 11
DRAINING ENGINE COOLANT .......................... 11
REFILLING ENGINE COOLANT ........................ 12
FLUSHING COOLING SYSTEM ......................... 13
RADIATOR ................................................................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
INSPECTION AFTER INSTALLATION ............... 15
Checking Radiator Cap .......................................... 15
Checking Radiator .................................................. 16
RADIATOR (ALUMINUM TYPE) .............................. 17
Disassembly and Assembly ................................... 17
PREPARATION ................................................... 17
DISASSEMBLY ................................................... 17
ASSEMBLY ......................................................... 18
INSPECTION ...................................................... 20
COOLING FAN ......................................................... 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21INSTALLATION ................................................... 21
Disassembly and Assembly .................................... 21
DISASSEMBLY ................................................... 21
ASSEMBLY ......................................................... 21
WATER PUMP .......................................................... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 25
WATER INLET AND THERMOSTAT ASSEMBLY .... 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 27
INSTALLATION ................................................... 27
INSPECTION AFTER INSTALLATION ................ 27
WATER OUTLET AND WATER PIPING ................... 28
Removal and Installation ........................................ 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28
INSPECTION AFTER INSTALLATION ................ 28
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 29
Standard and Limit .................................................. 29
ENGINE COOLANT CAPACITY (APPROXI-
MATE) .................................................................. 29
THERMOSTAT .................................................... 29
RADIATOR .......................................................... 29
VK45DE
PRECAUTIONS ........................................................ 30
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 30
PREPARATION ......................................................... 31
Special Service Tools ............................................. 31
Commercial Service Tools ...................................... 31
OVERHEATING CAUSE ANALYSIS ........................ 32
Troubleshooting Chart ............................................ 32