Fehler im Hybridantriebs-Steuergerät gespeichert

Another module reporting that the hybrid powertrain controller is itself carrying a fault, so the data it publishes cannot be relied on. It is a pointer rather than a diagnosis — the code says where to look, not what is wrong.

Reading it as a fault in the module is the mistake it exists to prevent. The hybrid controller coordinates the engine, the motors, the battery and the inverter, so a fault in any of them leaves it unable to answer normally, and the modules asking report invalid data. The originating code is inside the hybrid controller and is the one that matters.

So the order of work is fixed: read the hybrid module's own codes first. Diagnosing the reporting module is diagnosing a messenger. High voltage systems demand the manufacturer's isolation procedure before any physical work, and much of what these modules report — battery temperature, state of charge, contactor state — is genuinely dangerous to investigate casually. Establish what the controller is complaining about before touching anything.