Hyundai Sonata: ESP(Electronic Stability Program) System / ESP Control Unit Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Brake System / ESP(Electronic Stability Program) System / ESP Control Unit Repair procedures

Removal

1.	Turn the ignition switch OFF.

2.	Pull up the lock of the HECU connector , then disconnect the connector.

Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.

Tightening torque :

ABS : 13.7 ~ 16.7 N.m (1.4 ~ 1.7 kgf.m, 10.1 ~ 12.3 lb-ft)

Loosen the HECU bracket bolts, 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.	The HECU must be transported and stored in.

3.	Never shock to the HECU.

Loosen the bracket bolts, then remove the bracket from HECU.

Tightening torque :

5.9 ~ 9.8 N.m (0.6 ~ 1.0 kgf.m, 4.3 ~ 7.2 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 - "ESP SYSTEMBrake System Bleeding")

4.	Connect the GDS to the data link connector located underneath the dash panel.

5.	Select and operate according to the instructions on the GDS screen. [VARIANT CODING] [Auto Detected Configuration Reset] [Longitidinal G Sensor Clibration] [SAS CALIBRATION]

ESP Control Unit Components and Components Location

Components 1. Front - left tube2. Rear - right tube3. Rear - left tube4. Front - right tube5. MC26. MC17. EPS control module(HECU) connector8. EPS control module(HECU)9. Bracket ...

Front Wheel Speed Sensor Components and Components Location

Components 1. Front wheel speed sensor connector2. Front wheel speed sensor ...

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