DTC P0753-00: Shift Control Solenoid Valve 'A' Electrical (UD/B): General Description
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
The TCM control the UD-VFS shift control solenoid valve by controlling the amperage to the solenoid, this helps reduce shift shock, improves fuel economy and lower emissions.