Repair Procedures: Removal

Turn the ignition switch OFF.
Pull up the lock of the HECU connector (A), then disconnect the connector.

Fig 1: HECU Connector
Courtesy of HYUNDAI MOTOR AMERICA
Remove the brake fluid from the master cylinder reservoir with a syringe.
CAUTION:
- 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.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:

M10: 12.7 ~ 16.7 N.m (1.3 ~ 1.7 kgf.m, 9.4 ~ 12.3 lb-ft)

M12: 18.6 ~ 22.6 N.m (1.9 ~ 2.3 kgf.m, 13.7 ~ 16.6 lb-ft)

Fig 2: HECU Brake Tubes
Courtesy of HYUNDAI MOTOR AMERICA
Loosen the HECU bracket bolts (A), 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: HECU Bracket Bolts
Courtesy of HYUNDAI MOTOR AMERICA
CAUTION:
1. Never attempt to disassemble the HECU.
2. Never shock 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)