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Nissan Sentra B18 (2020-2025) Service Manual: Excessive Operation Frequency

Nissan Sentra B18 (2020-2025) Service Manual / Brakes / Brake Control System :: Vdc/tcs/abs / Symptom Diagnosis / Excessive Operation Frequency

Diagnosis Procedure

Diagnosis Procedure

VDC function, TCS function, ABS function, EBD function or brake assist function operates in excessive operation frequency.

  1. CHECK BRAKE FORCE

    1. Check brake force using a brake tester.

    Is the inspection result normal?

    YES>>

    GO TO 2.

    NO>>

    Check brake system.

  2. CHECK FRONT AND REAR AXLE

    1. Check that there is no excessive looseness in front and rear axle.

      Refer to Inspection (front) or Inspection (rear).

    Is the inspection result normal?

    YES>>

    GO TO 3.

    NO>>

    Repair or replace error-detected parts.

  3. CHECK WHEEL SENSOR

    1. Check wheel sensor.

      • Check installation and damage of wheel sensor.

      • Check connection of wheel sensor harness connector.

      • Check terminal of wheel sensor harness connector.

    Is the inspection result normal?

    YES>>

    GO TO 4.

    NO>>

    Repair installation or replace wheel sensor.

    • Front wheel sensor: Refer to Removal and Installation.

    • Rear wheel sensor: Refer to Removal and Installation.

  4. CHECK SENSOR ROTOR

    1. Check that there is no looseness, damage or foreign material on sensor rotor.

    Is the inspection result normal?

    YES>>

    GO TO 5.

    NO>>

    Repair installation or replace sensor rotor.

    • Front sensor rotor: Refer to Removal and Installation.

    • Rear sensor rotor: Refer to Removal and Installation.

  5. CHECK THAT WARNING LAMP TURNS OFF

    1. Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn OFF approximately 1 second after key switch is turned ON and stay in OFF status during driving.

      CAUTION:

      Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake fluid is less than the specified level (brake fluid level switch is ON).

    Is the inspection result normal?

    YES>>

    Inspection End.

    NO>>

    GO TO 6.

  6. PERFORM SELF DIAGNOSTIC RESULT

    1. CONSULT

      1. Ignition switch OFF → ON.

        CAUTION:

        • Be sure to wait 10 seconds after placing ignition switch OFF or ON.

        • Set the Nissan Sentra vehicle to READY/Start the engine.

      2. Repeat step 1 two or more times.

      3. Select “Self Diagnostic Result” mode of “ABS”.

    Is any DTC detected?

    YES>>

    Check the DTC. Refer to DTC Index.

    NO>>

    Inspection End.

Symptom Diagnosis
...

Unexpected Brake Pedal Reaction
Diagnosis Procedure Diagnosis Procedure A malfunction of brake pedal feel (height or other) is detected when brake pedal is depressed. CHECK FRONT AND REAR AXLE ...

Other materials:

Manual operation
Fan speed control Press the fan control buttons to manually control the fan speed. Press the AUTO button to return to automatic control of the fan speed. Air recirculation Press the air recirculation button to recirculate interior air inside the vehicle. The indicator light on the b ...

Precautions for Work
Precautions for Work When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth. When removing (disengaging) components with a screw ...

Ignition Coil
Exploded View Exploded View 1. Ignition coil 2. Spark plug 3. Rocker ...

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