Hi everyone

Please bear with me as I tell you the trouble I'm having with my Fiesta Mk6

I bought the car two years ago as a cheap car to use to go back and forth to work and apart from putting from fitting a new back box and injector seals it been a faultless car... or so I thought

Two weeks ago I took the car for it's MOT and it failed as the ABS light didn't come on. I explained to the tester that the light has never come on since I've owned the car.
So I took the car away thinking that the bulb must of gone in the instrument cluster or a fuse had gone somewhere. Having checked all the fuses and found they were fine I pulled the instrument panel out to find it had Led's and not bulb. Worse it that someone had removed the Led for the ABS! At this point alarm bells started to ring in my head and I realised someone would only have done this to hide a problem in the hope of it getting through an MOT.
So the first thing I did was set out test the brakes with a skid test to see if the ABS actually works which it doesn't. I've driven it on a gravel driveway several times and it skids every time, the abs never kicks in.
So I then found a local repairer who replaced the missing Led's for me which was fairly cheap. I reassembled the instrument cluster and I now have a ABS light that is permanently on. However no other lights stay on permanently such as the handbrake light etc and the speedo and mileage are working as they should.

Today I hooked the car up to a ODB2 reader I got from Euro car parts and used the free version of Forscan and it showed a P0504-60 error on the Transmission and powertrain modules and also the instrument cluster




The code related to a brake sensor correlation A/B problem.

How likely is it to be the switch? I'm concerned it's going to be a problem with the PCM module on the ASB pump.
Is there anyway I can test the pump and without taking it to a dealership?

I'd appreciate any advice etc anyone can offer

Many thanks in anticipation

Liam