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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System - Abs & Abs/TCS >> Trouble Diagnoses For Symptoms >> Symptom 1. ABS Works Frequently

Symptom 1. ABS Works Frequently

  1. CHECK BRAKE FLUID PRESSURE

    Check brake fluid pressure distribution.

    Refer to HYDRAULIC CIRCUIT .

    Is brake fluid pressure distribution normal? 

    1. Yes: GO TO 2.
    2. No
  2. CHECK WHEEL SENSOR
    1. Check wheel sensor connector for terminal damage or loose connections.
    2. Perform wheel sensor check.

      Refer to "DIAGNOSTIC PROCEDURE ".

    Is wheel sensor mechanism OK? 

    1. Yes: GO TO 3.
    2. No: Repair.
  3. CHECK FRONT AXLE

    Check front axles for excessive looseness. Refer to FRONT WHEEL BEARING .

    Is front axle installed properly? 

    1. Yes: Go to , "SYMPTOM 2. UNEXPECTED PEDAL ACTION ".
    2. No: Repair.