Hyundai Santa Fe (TM): ESP(Electronic Stability Program) System / ESP Control Module. Repair procedures

Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Pull up the lock of the HECU connector and then disconnect the connector (A).

3.
Remove the brake tube (A, B) after loosening the brake tube flare nuts.
Tightening torque :
13.7 - 16.7 N.m (1.4 - 1.7 kgf.m, 10.1 - 12.3 lb-ft)

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

4.
Remove the ESP control module (A) after loosening the mounting nuts.
Tightening torque :
16.7 - 25.5 N.m (1.7 - 2.6 kgf.m, 12.3 - 18.8 lb-ft)

5.
Separate the bracket (B) after remove the mounting bolt from the HECU (A).

Installation
1.
To install, reverse the removal procedure.
2.
After installation, bleed the brake system.
(Refer to ESP(Electronic Stability Program) System - "ESP System Bleeding")
3.
Connect the diagnostic tool to the data link connector located underneath the dash panel.
4.
Conduct the Variant coding.
5.
Conduct the Auto Detected Sensor Calibration.
6.
Conduct the Longitudinal G Sensor Calibration.
7.
After replacing the ESP control module execute the "Assembly Check (ECU replacement)" of the additional function to check that the mounting is successful.
Adjustment
Perform diagnostic procedure by using diagnostic device as shown below :
1.
Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then turn the self-diagnosis device after key is ON.
2.
Select the "vehicle model" and "ESP/ESC" on diagnostic tool vehicle selection screen, then select OK.
[Variant Code Reset]

[Variant Coding]

[Longitudinal G Sensor Calibration]

Assembly Check (ECU replacement)

    Components 1. Front - right (FR) 2. Rear - left (RL) 3. Rear - right (RR) 4. Front - left (FL) 5. MC2 6.

    Description 1. The ESP OFF switch is for the user to turn off the ESP system. 2. The ESP OFF lamp is on when ESP OFF switch is engaged.

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Description and operation

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    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Rear Corner Radar System

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