Repair procedures: Removal

Turn the ignition switch OFF.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:

ABS: 12.7 ~ 16.7N.m(1.3 ~ 1.7kgf.m, 9.4 ~ 12.3lb-ft)

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

[LHD]

Fig 1: HECU Brake Tubes (LHD)
Courtesy of HYUNDAI MOTOR AMERICA

[RHD]

Fig 2: HECU Brake Tubes (RHD)
Courtesy of HYUNDAI MOTOR AMERICA
Pull up the lock of the HECU connector, then disconnect the connector.
Loosen the HECU bracket bolts (A) and nut (B), then remove HECU and bracket.
Tightening torque:

16.7 ~ 25.5N.m(1.7 ~ 2.6kgf.m, 12.3 ~ 18.8lb-ft)

[LHD]

Fig 3: HECU Bracket Bolts (LHD)
Courtesy of HYUNDAI MOTOR AMERICA

[RHD]

Fig 4: HECU Bracket Bolts (RHD)
Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
1. Never attempt to disassemble the HECU.
2. The HECU must be transported and stored in.
3. Never shock to the HECU.
Remove the 3 bolts, then remove the bracket from HECU.
Tightening torque:

10.8 ~ 13.7N.m(1.1 ~ 1.4kgf.m, 8.0 ~ 10.1lb-ft)