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Unexpected Pedal Action

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WARNING LAMP ACTIVATION 

    Make sure warning lamp remains off while driving.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Carry out self-diagnosis. Refer to "SELF-DIAGNOSIS ".
  2. CHECK BRAKE PEDAL STROKE 

    Check brake pedal stroke.

    Fig 1: Checking Brake Pedal Stroke
    G00740125Courtesy of NISSAN MOTOR CO., U.S.A.

    Is pedal stroke excessive? 

    1. Yes: Perform Basic Inspection. Refer to "BASIC INSPECTION ".
    2. No: GO TO 3.
  3. CHECK CONNECTOR AND BRAKING PERFORMANCE 
    1. Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
    2. Drive vehicle and check brake operation.
    NOTE: Stopping distance may be longer than vehicles without ABS when road condition is slippery.

    OK or NG 

    1. OK: GO TO 4.
    2. NG: Perform Basic Inspection. Refer to "BASIC INSPECTION ".
  4. CHECK WHEEL SENSORS 

    Check the following.

    • Wheel sensor mounting for looseness
    • Wheel sensors for physical damage
    • Wheel sensor connectors for terminal damage or loose connections

    OK or NG 

    1. OK: Check ABS actuator and electric unit (control unit) connector terminals for deformation, disconnection, looseness or damage. Reconnect ABS actuator and electric unit (control unit) harness connector. Then retest.
    2. NG: Repair or replace as necessary.
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