Nissan Sentra Service Manual: Excessive abs function operation frequency
Diagnosis Procedure
1.CHECK START
Check front and rear brake force distribution using a brake tester.
Is the inspection result normal? YES >> GO TO 2 NO >> Check brake system.
2.CHECK FRONT AND REAR AXLE
Make sure that there is no excessive play in the front and rear axles. Refer to front: FAX-6, "Inspection", rear: RAX-5, "Inspection".
Is the inspection result normal? YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK WHEEL SENSOR AND SENSOR ROTOR
Check the following:
-
Wheel sensor installation for damage
-
Sensor rotor installation for damage
-
Wheel sensor connector
-
Wheel sensor harness
Is the inspection result normal? YES >> GO TO 4 NO >> • Replace wheel sensor BRC-106, "FRONT WHEEL SENSOR : Removal and Installation" or BRC-107, "REAR WHEEL SENSOR : Removal and Installation".
• Replace sensor rotor BRC-109, "FRONT SENSOR ROTOR : Removal and Installation" or BRC- 109, "REAR SENSOR ROTOR : Removal and Installation".
• Repair harness.
4.CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.
Is the inspection result normal? YES >> Inspection End.
NO >> Perform self diagnostic result. Refer to BRC-31, "CONSULT Function (ABS)".
VDC/TCS/ABS
Symptom Table
If ABS warning lamp and SLIP indicator lamp turn ON, perform
self-diagnosis.
NOTE:
1: The ABS does not operate when the speed is 10 km/h
(6 MPH) or less.
2: Under ...
Unexpected pedal reaction
Diagnosis Procedure
1.CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Refer to BR-15, "Adjustment".
Is the stroke too big?
YES >>
Bleed air from brake line and hose. Re ...
Other materials:
General Precautions
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness connector,
turn ignition switch OFF and disconnect negative battery
cable. Failure to do so may damage the ECM because
...
USB interface (models with Navigation System)
Connecting a device to the USB input
jack
WARNINGDo not connect, disconnect, or operate the
USB device while driving. Doing so can be
a distraction. If distracted you could lose
control of your vehicle and cause an accident
or serious injury.
CAUTION
Do not force t ...
P0520 EOP System
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0520
EOP SENSOR/SWITCH
(Engine oil pressure sensor/
switch circuit)
ECM detects the following status continuously
for 5 seconds ...
