Check the ground circuit

Disconnect the connector from the ABS control module.
Check for continuity between terminals 13, 38 of the ABS control module harness side connector and ground point.

Fig 1: Checking Continuity Between ABS Control Module Connector Terminals 13, 38 And Ground Point
Courtesy of KIA MOTORS AMERICA, INC.
Is there continuity?
YES
- Check the wheel speed sensor circuit.
NO
- Repair an open in the wire and ground point.