ABS INFINITI M35 2006 Factory Owners Manual

TROUBLE DIAGNOSIS
BRC-55
[VDC/TCS/ABS]
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Revision: 2006 January2006 M35/M45
Symptom 3 The Braking Distance Is LongNFS000R6
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.
1. CHECK FUNCTION
Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deactivate
ABS. In this condition, check stopping distance. After inspection, connect connector.
OK or NG
OK >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .
NG >> Check brake system.
Symptom 4 ABS Function Does Not OperateNFS000R7
CAUTION:
ABS does not operate when speed is 10 km/h (6 MPH) or lower.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp turns OFF after ignition switch is turned on or when driving.
OK or NG
OK >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-23, "
Self-Diagnosis" .
Symptom 5 Pedal Vibration or ABS Operation Sound OccursNFS000R8
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it).However, this is normal.
When shifting gears
When driving on slippery road
During cornering at high speed
When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1. SYMPTOM CHECK 1
Check if there is pedal vibration or operation sound when the engine is started.
Do symptoms occur?
YES >> GO TO 2.
NO >> Perform self -diagnosis. Refer to BRC-23, "
Self-Diagnosis" .
2. SYMPTOM CHECK 2
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .

BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Symptom 6 Vehicle Jerks During VDC/TCS/ABS ControlNFS000R9
1. SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> Normal.
NG >> GO TO 2.
2. CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnostic of ABS actuator and electric unit (control unit).
Are self-diagnosis results indicated?
YES >> Check corresponding items, make repairs, and perform ABS actuator and electric unit (control
unit) self-diagnosis.
NO >> GO TO 3.
3. CHECK CONNECTOR
Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check
terminal for deformation, disconnection, looseness, etc.
Securely connect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis results indicated?
YES >> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.
NO >> GO TO 4.
4. CHECK ECM AND A/T SELF-DIAGNOSIS RESULTS
Perform ECM and A/T self-diagnosis.
Are self-diagnosis results indicated?
YES >> Check the corresponding items.
ECM: Refer to EC-100, "TROUBLE DIAGNOSIS" (VQ35DE), EC-811, "TROUBLE DIAGNO-
SIS" (VK45DE).
A/T: Refer to AT-44, "TROUBLE DIAGNOSIS" .
NO >> Replace ABS actuator and electric unit (control unit).

WHEEL SENSOR
BRC-57
[VDC/TCS/ABS]
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BRC
Revision: 2006 January2006 M35/M45
WHEEL SENSORPFP:47910
Removal and InstallationNFS000RA
COMPONENT
NOTE:
The above figure (front side) shows left side. Right side is the mirror image.
REMOVAL
Pay attention to the following when removing sensor.
CAUTION:
Do not twist sensor harness as much as possible, when removing it. Pull sensors out without pull-
ing on sensor harness.
Take care to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before
removing front or rear wheel hub. This is to avoid damage to sensor wiring and loss of sensor
function.
INSTALLATION
Pay attention to the following when installing wheel sensor. Tighten installation bolts to the specified torques.
Refer to BRC-57, "
COMPONENT" .
1. Front LH wheel sensor 2. Front LH wheel sensor connector 3. Clamp
4. Bracket 5. Rear RH wheel sensor connector 6. Rear LH wheel sensor connector
7. Rear LH wheel sensor 8. Rear RH wheel sensor
A. Front side B. Rear side : Front
Refer to GI section GI-11, "
Components" for symbol marks in the figure.
SFIA2723J

BRC-58
[VDC/TCS/ABS]
WHEEL SENSOR
Revision: 2006 January2006 M35/M45
When installing, make sure there is no foreign material such as iron chips on and in the mounting hole of
the wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove any foreign
material and clean the mount.
When installing wheel sensor, be sure to press rubber grommets in until they lock at locations shown
above in the figure. When installed, harness must not be twisted.

SENSOR ROTOR
BRC-59
[VDC/TCS/ABS]
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BRC
Revision: 2006 January2006 M35/M45
SENSOR ROTORPFP:47970
Removal and InstallationNFS000RB
REMOVAL
CAUTION:
Do not reuse sensor rotor.
Front
Sensor rotor cannot be disassembled. Remove the sensor rotor together with hub bearing assembly.
Refer to FAX-5, "
REMOVAL" .
Rear
Follow the procedure below to remove rear sensor rotor.
–Remove side flange. Refer to RFD-14, "SIDE OIL SEAL" .
–Using a bearing replacer (suitable tool) and puller (suitable tool), remove sensor rotor from side flange.
INSTALLATION
Front
Sensor rotor cannot be disassembled. Remove the sensor rotor together with hub bearing assembly.
Refer to FAX-7, "
INSTALLATION" .
Rear
Follow the procedure below to install rear sensor rotor.
–Using a drift (SST), press rear sensor rotor onto side flange.
–Install side flange. Refer to RFD-14, "SIDE OIL SEAL" .
SFIA2040J

BRC-60
[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Revision: 2006 January2006 M35/M45
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)PFP:47660
Removal and InstallationNFS000RC
COMPONENT
CAUTION:
Be careful of the following.
Before servicing, disconnect the battery cable from negative terminal.
To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-
aged. To install, use flare nut torque wrench.
Do not apply excessive impact to ABS actuator and electric unit (control unit), such as dropping it.
Do not remove and install actuator by holding harness.
After work is completed, bleed air from brake tube. Refer to BR-11, "Bleeding Brake System" .
After installing harness connector in the ABS actuator and electric unit (control unit), make sure
connector is securely locked.
REMOVAL
1. Remove cowl top cover. Refer to EI-18, "REMOVAL" .
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
4. Remove tire.
5. Remove fender protector (rear): (front LH side). Refer to EI-20, "
REMOVAL" .
6. Remove ABS actuator and electric unit (control unit) bracket mounting nut.
1. ABS actuator and electric unit (con-
trol unit)2. Connector 3. To front RH brake caliper
4. To rear LH brake caliper 5. To rear RH brake caliper 6. To front LH brake caliper
7. From master cylinder primary side 8. From master cylinder secondary side 9. Bushing
10. Bracket A. Left side of dash panel
Refer to GI section GI-11, "
Components" for symbol marks in the figure.
SFIA3018E

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
BRC-61
[VDC/TCS/ABS]
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BRC
Revision: 2006 January2006 M35/M45
7. Remove ABS actuator and electric unit (control unit) from vehicle.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
When replacing ABS actuator and electric unit (control unit), make sure to adjust neutral position of
steering angle sensor. Refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Position"

BRC-62
[VDC/TCS/ABS]
G-SENSOR
Revision: 2006 January2006 M35/M45
G-SENSORPFP:47930
Removal and InstallationNFS000RD
CAUTION:
Do not drop or strike yaw rate/side G sensor, because it has little endurance to impact.
Do not use power tool etc., because yaw rate/side G sensor is sensitive for the impact.
REMOVAL
1. Remove center console. Refer to IP-10, "Component Parts
Drawing" .
2. Disconnect yaw rate/side G sensor harness connector.
3. Remove mounting bolts. Remove yaw rate/side G sensor.
(Shown in the figure 1).
INSTALLATION
Installation is the reverse order of removal.
SFIA2725J
Yaw rate/side G sensor mounting bolt
: 6.5 Nꞏm (0.66 kgꞏm, 58 in-lb)

STEERING ANGLE SENSOR
BRC-63
[VDC/TCS/ABS]
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BRC
Revision: 2006 January2006 M35/M45
STEERING ANGLE SENSORPFP:25554
Removal and InstallationNFS000RE
REMOVAL
1. Remove spiral cable assembly. Refer to SRS-40, "SPIRAL CABLE" .
2. Remove steering angle sensor from spiral cable assembly.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
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: 2006 January2006 M35/M45