ABS TRACS lights coming on intermittently

[El Padrino]

The dreaded ABS TRACS lights have been coming on intermittently. The brake pedal can sometimes buzz before they come on. If I'm using the car the next day, the lights will be on upon starting, then go off after a few seconds and stay off for a few days, until the cycle repeats.

My ABS module was rebuilt in Jan 2023, along with the o/s/f ABS sensor replaced with a new one. In July 2023, I had the n/s/f ABS sensor also replaced with a new one. I took the car back to the indy I've been using for the past couple of years who carried out the work. They have checked the reluctors, speed sensors etc and both the wheel bearings are new, but can't find a fault via a scan. They said the lights need to stay on permanently for the scanner to pick up any errors. *** I had the wheel bearings done at a different place who noticed the ABS TRACS lights came on, so they did a scan and they said it pointed to an issue with the ABS module ***. If it was the module, then surely my usual indy's scanner would have picked it up. I feel a bit fobbed off by them (I'm sure that's not the case), but if they can't find a fault, then I guess they are stuck too.

I'm bit concerned that MOT time will be coming up in a few months. I really don't want to scrap the car. Not due to the fact I've spent quite a bit of money so far putting things right when needed, but it's my first Volvo (V70R) and I really like the car.

So, I'm in a dilemma. I was thinking of buying another working ABS module, get it fitted and see if that solves the issue or bank on the lights not coming on at MOT time. Very unlikey the latter will happen due to sod's law.

Your helpful thoughts as always please.