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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Program (Esp) System >> ESP Control Unit >> Repair Procedures >> Removal
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Repair Procedures: Removal

  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the Engine room fuse & relay box.

    (Refer to Body Electrical System - "RELAY BOX (ENGINE COMPARTMENT) ")

  3. Disconnect the ESP control unit connector.
    G14210290Courtesy of HYUNDAI MOTOR AMERICA
  4. Disconnect the brake tubes (A) from the HECU by unlocking the nuts counterclockwise with a wrench.

    Tightening torque 

    Wheel port:

    13.7 - 16.7 N.m (1.4 - 1.7 kgf.m, 10.1 - 12.3 lb-ft)

    Master cylinder port:

    18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

    G14210291Courtesy of HYUNDAI MOTOR AMERICA
  5. Loosen the HECU bracket bolts, then remove HECU and bracket.

    Tightening torque: 

    19.6 - 29.4 N.m (2.0 - 3.0 kgf.m, 14.5 - 21.7 lb-ft)

    G14210292Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the bolts, then remove the bracket from HECU.
    NOTE:
    1. Never attempt to disassemble the HECU.
    2. The HECU must be transported and stored in.
    3. Never give any shock to the HECU.