ABS Control Unit: Removal

Disconnect the battery (-) terminal.
Disconnect the brake tubes from the HECU.
Tightening torque :

5.9 ~ 9.8 N.m (0.6 ~ 1.0 kgf.m, 4.3 ~ 7.2 lb-ft)

Fig 1: Identifying Brake Tubes
Courtesy of HYUNDAI MOTOR CO.
Disconnect the HECU connector.
Remove the HECU by loosening the bracket mounting bolts.
Tightening torque:

16.7 ~ 25.5 N.m (1.7 ~ 2.6 kgf.m, 12.3 ~ 18.8 lb-ft)
CAUTION:
- Never attempt to disassemble the HECU.
- The HECU must be protected during storage and transport, and must not be subjected to excessive shock.