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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Parking Brake System - With Electric Parking Brake >> Symptom Diagnosis >> Electric Parking Brake System >> Parking Brake Does Not Release >> Diagnosis Procedure

Diagnosis Procedure

  1. PERFORM THE SELF-DIAGNOSIS 

    SYMBOL CONSULT

    Select "Self Diagnostic Result" mode of "EHS/PKB".

    Is DTC detected?

    YES

    Check the DTC. Refer to DTC Index .

    NO

    GO TO 2.

  2. CHECK REAR DISC BRAKE DRAG 

    Check if the rear disc brake is dragging. Refer to REAR DISC ROTOR : Inspection .

    Is the rear disc brake dragging?

    YES

    Check the rear disc brake system. Refer to REAR BRAKE CALIPER ASSEMBLY : Exploded View .

    NO

    GO TO 3.

  3. DISCONNECT PARKING BRAKE ACTUATOR HARNESS CONNECTOR 
    1. Disconnect parking brake actuator harness connector (1) from rear caliper assembly.
      GNSAWFIA0025Z-025Courtesy of NISSAN NORTH AMERICA, INC.

    GO TO 4.

  4. REMOVE PARKING BRAKE ACTUATOR 

    Remove parking brake actuator (2) from rear brake caliper assembly (1).

    GNSALFIA0045Z-045Courtesy of NISSAN NORTH AMERICA, INC.

    GO TO 5.

  5. RELEASE OF PARKING BRAKE 

    Rotate the rear brake caliper assembly (1) spindle part (A) clockwise.

    GNSJSFIA2444Z-444Courtesy of NISSAN NORTH AMERICA, INC.

    Is the parking brake released?

    YES

    GO TO 6.

    NO

    Check the rear brake caliper assembly. Refer to REAR BRAKE CALIPER ASSEMBLY : Exploded View .

  6. REPLACE REAR CALIPER ASSEMBLY 

    Replace the rear caliper assembly. Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation .

    CAUTION: Never reuse the parking brake actuator.

    End of work.