Nissan Sentra Service Manual: Pedal vibration or abs operation sound occurs
Diagnosis Procedure
CAUTION:
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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.
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When shifting gears
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When driving on slippery road
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During cornering at high speed
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When passing over bumps or grooves [approximately 50 mm (1.97 in) or more]
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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-31, "CONSULT Function (ABS)".
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.
ABS function does not operate
Diagnosis Procedure
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 i ...
Vehicle jerks during vdc/tcs/abs
control
Diagnosis Procedure
1.SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
Is the inspection result normal?
YES >> Inspection End.
NO >> GO TO 2
2.CHECK SELF DIAG ...
Other materials:
Vehicle Recovery (Freeing a Stuck Vehicle)
Front
Remove the hook cover from the bumper using a remover tool.
Securely install the vehicle recovery hook stored with jacking
tools.
Check that the hook is properly secured in the stored place after use.
WARNING:
Stand clear of a stuck vehicle.
Do not spin your tires at high s ...
VDC OFF Switch
Component Function Check
1.CHECK VDC OFF SWITCH OPERATION
Check that VDC OFF indicator lamp in combination meter turns
ON/OFF when VDC OFF switch is operated.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proceed to diagnosis procedure. Refer to BRC-92, "D ...
Ignition timing
Inspection
1.CHECK IGNITION TIMING
Attach timing light to the ignition coil No.1 harness.
Check ignition timing.
: Timing indicator
Specification : EC-486, "Ignition Timing"
>> INSPECTION END
...
