Hello trying to find out if any other members have had the same problem I have with my fair punto grande 1.9 diesel

It has the passenger air bag flashing on and of
The warning triangle flashing on and of
Plus and other lights on the speedo side flashing on and of
Then the hole clocks off then back on
I have asked local punto dealers and they saying it could be the body controller but I think it's something else

So any help would be most great full