In some cases, the error is purely software-based and can be resolved by updating the vehicle's firmware (I-Level update). Faulty EPS Control Unit:

The technical definition of D52C44 is often "Signal error (energy generation status, ID: ST_ENERG_GEN) Sender: DME1 - Invalid". In simpler terms, the power steering computer is not getting a reliable signal from the engine computer (DME) about how much power the alternator is currently producing.

Sudden loss of power assistance, making the wheel difficult to turn, especially at low speeds.