Thanks chaps
I might try to close the loop on the sensor connector on the front ones then and at least I know which end is triggering the fault.
I'll post up a picture of the outer pad and you'll see what I mean, that's is when we get a dry spell .
I'm in the garage today my classic mini restoration is finally getting towards the end of the welding! Just about to re-paint the underside and stone chip etc. hoping to getting to the final paint soon but this damp weather isn't the best painting conditions for a home job, hope we get some sun soon eh

meanwhile I can get the underside done.
Cheers Glyn