Bought myself a cheap diagnostic tool off ebay when my abs light came on last week while driving on the motorway. Plugging it in, it shows fault code 290
Which in the provided booklet says that this is the wheel speed sensor on the right rear, believe to be offside rear
The sensor looked pretty grubby and was a pain to get out but this is now changed for a new one, used the diagnostic tool again, cleared the fault but as soon as it says clear, the abs light goes out and then straight back on again
I haven't driven the car forwards yet, but it was also beeping at me when you drive away and shows permanently the brake warning in the central display on the dash.
What else can I check/do?