Etios MOST bus fault

I had a similar issue with my Etios' audio system. No sound whatsoever and navigation was also affected. I think the MOST bus network might be the culprit. Did the error message specify anything about a particular control unit?

Thanks for the reply. No, the error message was pretty generic: MOST bus fault. It just mentions a defect in one of the control units installed in the MOST bus. Is there a specific control unit that usually causes this?

In my case, the error didn't specify the exact control unit either. Given the symptoms and the general error message, and after checking around, it does seem to point to a fault within the MOST bus itself. Unfortunately, diagnosing which specific control unit is the problem requires specialized equipment. I suggest you take it to a workshop.

Thanks for the advice! I took it to the workshop and you were right, the MOST bus was faulty. Repair cost me about 1000€. Everything's working fine again now.