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Hyundai Azera: ESC Control Module Repair procedures - ESC(Electronic Stability Control) System - Brake System - Hyundai Azera 2011-2025 Service ManualHyundai Azera: ESC Control Module Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Brake System / ESC(Electronic Stability Control) System / ESC Control Module Repair procedures

Removal
1.
Turn the ignition switch OFF.
2.
Remove the air duct (B) and air cleaner assembly (A).

3.
Remove the connector and then arrange the wiring harness (A).

4.
Remove the brake fluid from the master cylinder reservoir with a syringe.
   
•
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.
5.
Loosen the flare nuts and then remove the brake tube (A).
Tightening torque:
18.6 ~ 22.6 N.m (1.9 ~ 2.3 kgf.m, 13.7 ~ 11.6 lb-ft)

6.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

7.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque:
11.7 ~ 15.7 N.m (1.2 ~ 1.6 kgf.m, 8.7 ~ 11.6 lb-ft)

8.
Loosen the HECU bracket bolts (A) and then remove HECU and bracket.
Tightening torque :
19.6 ~ 29.4 N.m (2.0 ~ 3.0 kgf.m, 14.5 ~ 21.7 lb-ft)

   
1.
Never attempt to disassemble the HECU.
2.
Never shock the HECU.
9.
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)
Installation
1.
Installation is the reverse of removal.
2.
Tighten the HECU mounting bolts and nuts to the specified torque.
3.
After installation, bleed the brake system.
(Refer to Brake system - "Bleeding")
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