Kia Optima: ESC (Electronic Stability Control) System / ESC Control Module
Components and components location
| Components |
| 1. Front - right (FR) 2. Rear - left (RL) 3. Rear - right (RR) 4. Front - left (FL) |
5. MC2 6. MC1 7. ESP control module (HECU) 8. Bracket |
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. |
Separate the brake tubes from the HECU by unlocking the nuts (6-ea) couterclockwise using a spanner.
|
| 4. |
Loosen the ESC control module mounting nut (A) and then remove the ESC control module from the vehicle.
|
| 5. |
Separate the bracket (B) after remove the mounting bolt from the HECU (A).
|
| Installation |
| 1. |
Install in the reverse order of removal. |
| 2. |
After installation, bleed the brake system. (Refer to Brake system - "Brake Bleeding Procedures") |
| 3. |
Conduct the Variant coding. |
| 4. |
Conduct the Auto Detected Sensor Calibration. |
| 5. |
Conduct the Longitudinal G Sensor Calibration. |
| 6. |
After replacing the ESC control module execute the "Assembly Check (ECU replacement)" of the additional function to check that the mounting is successful. |
| 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]
[Assembly Check]
ESC (Electronic Stability Control) System
Components and components location
Components
1. ESC control module (HECU)
2. Front wheel speed sensor
3. Rear wheel speed sensor
4. ABS warning lamp
...
ESC OFF Switch
Description and operation
Description
1.
The ESC OFF switch is for the user to turn off the ESC system.
2.
The ESC OFF lamp is on when ESC OFF s ...
Other information:
Kia Optima DL3 2019-2025 Owner's Manual: Electronic Stability Control (ESC) OFF Indicator Light, Immobilizer Indicator Light (Without Smart Key)
Electronic Stability Control (ESC) OFF Indicator Light This indicator light illuminates: Once you set the ignition switch or Engine Start/Stop Button to the ON position. - It illuminates for approximately 3 seconds and then goes off. When you deactivate the ESC system by pressing the ESC ...
Kia Optima DL3 2019-2025 Service and Repair Manual: Variable Charge Motion Actuator (VCMA)
Description and operation Description • The Variable Charge Motion Actuator (VCMA) is installed on the inlet of the intake manifold. • It consists of a DC motor which actuates the VCM valve and a position sensor which detects the pos ...
