Mercedes-Benz: Electrical System - Other

Due to an improper control program in the voltage converter, temporary communication failures between the server and diagnostic scanner (scan tool) during connection cause the converter to incorrectly diagnose a fault and disconnect both primary and secondary power circuits. This prevents power supply to the secondary circuit, resulting in the secondary battery failing to charge and becoming depleted. Consequently, ESP and ABS warning lights illuminate and these functions are disabled, impairing braking performance. Continued operation in this state may result in the vehicle entering a fail-safe mode with reduced output.