Hyundai Elantra MD ABS Module OEM Part No. 58920-3X400 - Genuine OEM Braking Control Unit (2011–2016)

The most common cause of failure in the Mando 58920-3X400 (S22) unit is internal pump motor circuit degradation and micro-solder joint fatigue on the integrated ECU board. Over time, heat cycles and vibration cause internal open circuits or solenoid driver faults, triggering diagnostic trouble codes such as C1202 (Pump Motor Circuit Open/Short), C2402 (Motor Electrical Fault), or C1604 (ECU Hardware Error) and illuminating both the ABS and ESC dash warning lights.

Yes. In the Hyundai Elantra MD, the Electronic Stability Control (ESC) and Vehicle Stability Management (VSM) systems rely entirely on the ABS Hydraulic Electronic Control Unit (HECU) to modulate brake pressure across individual wheels. When the internal motor or valve circuit in the 58920-3X400 fails, the vehicle's ECU automatically shuts down stability control as a fail-safe. Fitting a verified OEM replacement unit immediately restores full functionality to both the ABS and ESC systems.

An OBD2 diagnostic scan will differentiate between the two: 1. Wheel Speed Sensor Faults: Typically register codes C1200 through C1211 (indicating specific wheel sensor open circuits, range/performance, or erratic signals). 2. ABS Module / Pump Unit Failures: Produce pump motor codes (C1202, C2402), internal hardware errors (C1604), or a total "No Communication / U-code" state with the ABS control module. If your scan tool cannot communicate with the ABS unit or flags internal motor/solenoid circuits, the 58920-3X400 assembly needs replacement.