Repair Procedures: Removal

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Remove the Engine room fuse & relay box.
(Refer to Body Electrical System - "RELAY BOX (ENGINE COMPARTMENT) ")
Disconnect the ESC control unit connector.

Fig 1: ESC Control Unit Connector
Courtesy of HYUNDAI MOTOR AMERICA
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)

Fig 2: Locating Brake Tubes From HECU
Courtesy of HYUNDAI MOTOR AMERICA
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)

Fig 3: HECU Bracket Bolts
Courtesy of HYUNDAI MOTOR AMERICA
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.