Check The Power Source Of ABS Control Module

WARNING: This page is about a different car, the 2017 Genesis G80. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the connector from the ABS control module.
Turn the ignition switch ON, measure the voltage between terminal 29 of the ABS control module harness side connector and body ground.
Specification: approximately B+

Courtesy of
Is voltage within specification?

YES

Check for poor ground.

NO

Check the harness or connector between the fuse (10A) in the engine compartment junction block and the ABS control module. Repair if necessary.