Repair Procedures: Removal

Turn the ignition switch OFF and disconnect the negative (-) battery cable.
Remove the engine room junction box and bracket.

Fig 1: Identifying Engine Room Junction Box And Bracket
Courtesy of HYUNDAI MOTOR CO.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:

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

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

Fig 2: Identifying Brake Tubes

Courtesy of HYUNDAI MOTOR CO.

Pull up the lock of the HECU connector, then disconnect the connector.
Loosen the HECU bracket bolt(3EA), 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 3: Identifying ABS HECU Bracket
Courtesy of HYUNDAI MOTOR CO.
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 3 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)