DTC C1605, C1700 Or C2114: Condition
WARNING: This page is about a different car, the 2002 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.
DTCs set when electronic wave noise interferes with CAN communication, mismatch of calculation between main and sub-processor or ABS valve coil or valve coil operating circuit malfunctions. Only possible repair is replacement of Hydraulic and Electronic Control Unit (HECU). See HYDRAULIC AND ELECTRONIC CONTROL UNIT under REMOVAL & INSTALLATION. After repair, retest system.