Repair procedures: Removal

Turn the ignition switch OFF and disconnect the negative (-) battery cable.
Pull up the lock of the ABS control unit connector, then disconnect the connector.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:

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

Fig 1: Identifying Brake Tubes Mounting Nuts
Courtesy of KIA MOTORS AMERICA, INC.
Loosen the HECU bracket bolts and nut, then remove HECU and bracket.
Tightening torque:

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

Fig 2: Identifying HECU Bracket Mounting Bolts And Nut
Courtesy of KIA MOTORS AMERICA, INC.
CAUTION:
1. Never attempt to disassemble the HECU.
2. The HECU must be transported and stored in.
3. Never shock to the HECU.
Remove the bolts, then remove the bracket from HECU.
Tightening torque:

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