Seat Mii electric central locking issue

Sounds like a pain. I had a similar issue with my old Renault Megane, though it wasn't electric. The central locking just gave up. Have you checked the fuses? It could also be a problem with the car alarm or security system interfering with the locking mechanism. Sometimes a faulty sensor can cause issues.

Thanks for the quick reply. Fuses are all good. When you say 'faulty sensor,' which sensor are you referring to? Is there a specific one related to the central locking or keyless entry system?

In my case, it was the connector for the door lock actuator. I'm not an expert and I can't tell you exactly which sensor is causing it, but the mechanic mentioned that sometimes the security system can trigger false positives. Honestly, given the error code, I'd recommend getting it checked out at a workshop. They'll be able to pinpoint the exact cable or plug causing the problem.

Took it to the workshop. They found a faulty connector in the central locking system, just like you said. 95€ later, it's fixed. Thanks for the advice.