Abs light keeps turning on

[Meatball]

I need some advice the mrs mini cooper s 2003 has just sprung up with an intermitten Abs and low pressure light.
I took it to a mechanic today and the lights stayed off - she drove it home and it lit up like a Christmas tree

Anyone had this?
Thanks

[Feirny]

Could be a number of things. Easiest fix is a potential sensor, worse case is an ABS hydro pump.

[mon the fish]

Most common cause (and cheapest fix) is a wheel speed sensor going south - or possibly just a bit of crud on said sensor.

I'd get that replaced and take it from there

[An Marcach]

It could also be an electrical fault / broken wire / damaged loom / etc.

It does happen

[Meatball]

I had the abs sensor changed that was showing up on the fault code reader. It's still doing it. I think there's a loom issue as mentioned. I've got another garage looking at it Friday as I've lost faith in the the first garage.

[wild rover]

Not conversant with the mini but have you checked for any play/wear in the wheel bearing

[bearman68]

Corroded / split reluctor ring is a strong contender.

[Meatball]

Unfortunately none of the above. So far they have changed the sensor and bearing carrier.
I've got an electrician coming out next week.
They think it may be the ecu.

[mon the fish]

Water on the BCU module in the footwell maybe?

[Meatball]

mon the fish said:

Water on the BCU module in the footwell maybe?

That was mentioned by the electrician. I was just about to sell the bloody car and this sprung up.

[Stiggolas]

Hi, have you checked for a slow puncture?
If the tyre pressure drops, you will get the low pressure light and sometimes the ABS light as it's detecting different wheel speeds..