DTC C1705-04: ECU Pre-Charge Circuit Fail: General Description
WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
The Motor Driven Power Steering (MDPS) uses an electric motor to provide directional control to the driver. The MDPS unit has a charging circuit to supply current to a motor temporarily.