ABS Warning Lamp

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 active ABS warning lamp indicates the self-test and failure status of the ABS. The ABS warning lamp shall be on:

During the initialization phase after IGN ON. (continuously 3 seconds)
In the event of inhibition of ABS functions by failure.
During diagnostic mode.
When the ECU Connector is separated from ECU.