VW Golf MK4 Airbag Light

Does anyone know where to find the fault code references
I have a 2002 Golf with the airbag light on. With an Xtool I have the COD 12855 station code 3141
I don’t really want to start soldering all the connectors only to still have the light on.
So far I’ve cleaned the connectors under the seat. And tried a reset….
Knowing the fault code would save a lot of time
Cheers Jez