[Warning Light] 2011 ABS light woes - ABS relay part ID/source?

[sonneur]

I have a 60 reg tdi 90 Multispace XTR with ABS light trouble. So far my local garage has replaced the ABS sensors and a wheel bearing, cleaned all the contacts they can find and checked the fuses - no change. From posts here, it seems like next thing is to replug the 'ABS relay' (apparently also the fuel pump relay) that's riveted on the front of the fusebox, then replace it if replugging doesn't fix the problem. It's labelled OMRON 24010 12V, but my local Citroen parts dep't won't guarantee the 'relay' they have listed for this car is the one I need. Does anyone know where I can get one of these, and/or  what the proper ID for the part is please? Thanks, Max