ESC stands for Electronic Stability Control. This system is installed on Hyundai, Chevrolet, Škoda, Kia, Lada, and other vehicles. It improves the car handling and helps to avoid accidents. It also helps the driver to keep the intended path. It is a complex solution and often includes additional functions such as emergency braking assist, rollover mitigation, and trailer stability assist.
How the ESC operates
ESC works closely with other driver assists such as ABS and ASR. It is switched on automatically when the key is turned in the ignition switch. It constantly compares the actual path of the vehicle with the intended one to eliminate the difference if necessary.
Readings from the steering wheel angle sensor, the accelerator pedal position sensor, and the brake light switch are used to monitor the driver’s actions. While the yaw rate sensor, longitudinal and lateral acceleration sensors, and wheel speed sensors provide information about the car’s actual path.
ABS works in combination with ESC to maintain the intended path by applying the braking force to certain wheels. Also, сommands for limiting the engine torque are sent to the engine control unit.
When the system activates, the corresponding warning light is blinking on the instrument panel. The system can be deactivated by pressing the button on the centre console.
Popular vehicles equipped with ESC
- Chevrolet Captiva, Cruze;
- Škoda Octavia III, Fabia III;
- Hyundai Elantra V, Sonata V;
- Lada Vesta GFL;
- Kia Soul I, Rio II, Carens IV.
Causes of malfunctions
- The system has lost its settings after removing the battery terminal.
- A blown fuse.
- Breakdown of the Haldex coupling.
- Incorrect readings from the ABS sensors.
- Broken electrical wiring.
- Control unit overheating.
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