C5 Tailgate Hall Sensor Fault

I had a similar problem with my C5. Does the error memory specifically point to the electrical sensor? For me, it turned out to be a defective connection.

Yes, the error indicates a problem with the electrical sensor. Could you elaborate on which connection specifically?

The workshop confirmed it was the cable or plug connection of the component. If the error message is very clear, I'd suggest visiting a workshop. It was difficult to resolve without proper equipment, in my experience.

Thanks for the information. Took it to the workshop, and it was the wiring. Repair cost 95€. Problem solved.