DTC Description
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
The ESP (ESC) monitors the voltage from the valve relay. This DTC appears in either of cases; when the valve relay is ON and the solenoid voltage is below a certain level for the specified period of time; when the valve relay is OFF and the solenoid voltage is over a certain level for the specified period of time.