Nissan Note E12. Manual - part 94

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

BRC-67

< SYMPTOM DIAGNOSIS >

[ABS]

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PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

Diagnosis Procedure

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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 [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 that there are pedal vibrations when the engine is started.
Do symptoms occur?

YES

>> GO TO 2.

NO

>> Inspect the brake pedal.

2.

SYMPTOM CHECK 2

Check that there are ABS operation noises when the engine is started.
Do symptoms occur?

YES

>> GO TO 3.

NO

>> Perform self diagnostic result. Refer to 

BRC-19, "CONSULT Function (ABS)"

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3.

SYMPTOM CHECK 3

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

>> Inspection End.

BRC-68

< SYMPTOM DIAGNOSIS >

[ABS]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

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Symptom

Result

Slight vibrations are felt on the brake pedal and operation noises occur when ABS is activated. 

This is a normal condi-
tion due to the ABS acti-
vation.

Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or 
snow-covered (fresh, deep snow) roads.

The brake pedal vibrates and motor operation noises occur from the engine room after the engine starts and 
just after the vehicle starts.

This is normal, and it is 
caused by the ABS op-
eration check.

WHEEL SENSOR

BRC-69

< REMOVAL AND INSTALLATION >

[ABS]

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REMOVAL AND INSTALLATION

WHEEL SENSOR

FRONT WHEEL SENSOR
FRONT WHEEL SENSOR : Exploded View

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FRONT WHEEL SENSOR : Removal and Installation

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CAUTION:

• Be careful not to damage front wheel sensor edge and sensor rotor teeth.

• When removing the front wheel hub, first remove the front wheel sensor from the steering knuckle.

Failure to do so may result in damage to the front wheel sensor, making the front wheel sensor inop-

erative.

• Pull out the front wheel sensor, being careful to turn it as little as possible. Do not pull on the front

wheel sensor harness.

• Before installation, check if foreign objects, such as iron fragments, are adhered to the pick-up part

of the front wheel sensor or to the inside of the hole in the steering knuckle for the front wheel sen-

sor, or if a foreign object is caught in the surface of the sensor rotor. Fix as necessary and then

install the front wheel sensor.

REMOVAL

1. Remove wheel and tire using power tool. Refer to 

WT-8, "Removal and Installation"

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2. Remove fender protector. Refer to 

EXT-24, "Removal and Installation"

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3. Disconnect the harness connector from the front wheel sensor.
4. Remove bolt and front wheel sensor from steering knuckle.
5. Release front wheel sensor harness clips from the vehicle.

INSTALLATION

Installation is in the reverse order of the removal.

1.

Front wheel sensor

2.

Harness connector

Front

AWFIA0865GB

BRC-70

< REMOVAL AND INSTALLATION >

[ABS]

WHEEL SENSOR

CAUTION:

Do not twist front wheel sensor harness when installing front

wheel sensor. Check that grommet (2) is fully inserted to

bracket (1). Check that front wheel sensor harness is not

twisted after installation.

REAR WHEEL SENSOR
REAR WHEEL SENSOR : Exploded View

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REAR WHEEL SENSOR : Removal and Installation

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CAUTION:

• Be careful not to damage rear wheel sensor edge and sensor rotor teeth.

• When removing the rear wheel hub, first remove the rear wheel sensor from the back plate. Failure to

do so may result in damage to the rear wheel sensor, making the rear wheel sensor inoperative.

• Pull out the rear wheel sensor, being careful to turn it as little as possible. Do not pull on the rear

wheel sensor harness.

• Before installation, check if foreign objects, such as iron fragments, are adhered to the pick-up part

of the rear wheel sensor or to the inside of the hole in the back plate for the rear wheel sensor, or if a

foreign object is caught in the surface of the sensor rotor. Fix as necessary and then install the rear

wheel sensor.

REMOVAL

JPFIC0209ZZ

1.

Rear wheel sensor 

2.

Harness connector 

Front

AWFIA0866GB