Repair Procedures: Removal

Turn the ignition switch OFF.
Remove the brake fluid from the master cylinder reservoir with a syringe.
NOTE:
- Be sure to completely remove foreign substances from around brake fluid reservoir and cap before opening the reservoir cap. If not, it may cause contamination of brake fluid and deterioration in braking performance.
- Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

Courtesy of HYUNDAI MOTOR AMERICA
Loosen the HECU bracket bolts (A) & nut (B) and then remove HECU and bracket.
Tightening torque:

Mounting bolts:

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

Mounting nut:

24.5 ~29.4 N.m (2.5 ~3.0 kgf.m, 18.1 ~21.7 lb-ft)

Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:

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

Courtesy of HYUNDAI MOTOR AMERICA

Tightening torque:

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

Courtesy of HYUNDAI MOTOR AMERICA
Remove the bolts and 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)

Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
1. Never attempt to disassemble the HECU.
2. Never shock the HECU.