ABS sensor?

[bikerdude666]

Hi all, just a quick question, is there an easy way of determining the abs fault without being able to plug it in to a T4? Since I had new trailing arm bushes fitted last year, the abs light has been on. The driver side rear has a newish back plate and sensor, so was assuming it was probably the passenger side rear, but as it’s a pain to do, I’m hoping there’s a way of finding out before going all through changing it, only to find it was the other side.

Cheers.