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 power latch and cinching connectors.
Courtesy of
Connect the power latch terminals directly to battery voltage (12V) and check that the motor operates smoothly.
Courtesy of
Courtesy of
Connect the power cinching terminals directly to battery voltage (12V) and check that the motor operates smoothly.