2001 INFINITI QX4 Factory Service Manual

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INFINITI QX4 2001  Factory Service Manual 7 CHECK ABS WARNING LAMP CONTROL CIRCUIT FOR OPEN
1. Disconnect combination meter connector M24.
2. Check continuity between combination meter connector M24 (body side) terminal 10 and ABS actuator an

Page 466 of 2395

INFINITI QX4 2001  Factory Service Manual 8. Vehicle Vibrates Excessively When ABS Is
Operating
=NBBR0078IWhile ABS is operating, brake pedal vibrates slightly. This is
not a problem.
IIf vehicle vibration is greater in the AUTO mode than in

Page 467 of 2395

INFINITI QX4 2001  Factory Service Manual 4 CHECK CIRCUIT
1. Disconnect connectors from ABS actuator and electric unit and transfer control unit. Check terminals for damage or
loose connection.
2. Check continuity between ABS actuator and ele

Page 468 of 2395

INFINITI QX4 2001  Factory Service Manual 6 CHECK ABS OPERATING SIGNAL
1. Connect CONSULT-II to Data Link Connector.
2. Turn ignition switch ªONº. Set CONSULT-II in the active test mode to output an ABS operating signal.
(Refer to ªACTIVE

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INFINITI QX4 2001  Factory Service Manual =NBBR0079
CAUTION:
Be careful not to damage sensor edge and sensor rotor teeth.
When removing the front or rear wheel hub assembly, discon-
nect the ABS wheel sensor from the assembly and move it
away

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INFINITI QX4 2001  Factory Service Manual SBR873C
Front Sensor RotorNBBR0079S03REMOVALNBBR0079S03011. Remove the front wheel hub. Refer to AX-8, ªDisassemblyº.
2. Remove the sensor rotor using suitable puller, drift and bear-
ing replacer.

Page 471 of 2395

INFINITI QX4 2001  Factory Service Manual ABS Actuator and Electric UnitNBBR0079S07
SBR468E
REMOVALNBBR0079S07011. Disconnect battery cable.
2. Drain brake fluid. Refer to ªChanging Brake Fluidº, BR-7.
3. Remove mounting bracket fixing bolt

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INFINITI QX4 2001  Factory Service Manual General SpecificationsNBBR0118Unit: mm (in)
Applied model2WD 4WD
Front brakeBrake model AD31VC
Cylinder bore diameter´number of pistons 44.45 (1.7500)´2
Pad
Length´width´thickness132.0´52.5´11
(