Kia Forte: ESC (Electronic Stability Control) System / ESC Control Module

Kia Forte 2019-2021 (BD) Service Manual / Brake System / ESC (Electronic Stability Control) System / ESC Control Module

Components and components location

Components

1. Front - right tube
2. Rear - left tube
3. Rear - right tube
4. Front - left tube

5. MC SEC
6. MC PRI
7. ESC control module (HECU)
8. Bracket

Repair procedures

Removal

1.	Turn ignition OFF and disconnect the negative (-) battery cable.

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. Otherwise, it may cause contamination of brake fluid and deterioration in braking performance.

•	Do not spill brake fluid on the vehicle as it may damage the paint. If brake fluid comes in contact with the paint, wash off immediately with water.

3.	Pull up the lock of the ESC connector (A) and then disconnect the connector.

Disconnect the brake tubes from the ECS by unlocking the nuts counterclockwise with a wrench.

Tightening torque:

A : 13.7 - 16.7 N·m (1.4 - 1.7 kgf·m, 10.1 - 12.3 lb·ft)

B : 18.6 - 22.6 N·m (1.9 - 2.3 kgf·m, 13.7 - 16.6 lb·ft)

Loosen the ECS bracket nuts (A), then remove ESC and bracket.

Tightening torque:

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

•	Never attempt to disassemble the ESC.

•	The ESC must be transported and stored in.

•	Never shock to the ESC.

Installation

1.	Install in the reverse order of removal.

2.	After installation, bleed the brake system. (Refer to Brake system - "Brake Bleeding Prcoedures")

3.	Conduct the Variant coding.

4.	Conduct the Auto Detected Sensor Calibration.

5.	Conduct the Longitudinal G Sensor Calibration.

Diagnostic procedure by using diagnostic device

Perform diagnostic procedure by using diagnostic device as shown below:

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.

Select the "vehicle model" and "ABS/ESC" on KDS vehicle selection screen, then select OK.

[Variant Coding]

[Auto Detected Sensor Calibration]

[Longitudinal G Sensor Calibration]

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