Have you had either of the drive shafts pulled out recently?

This is a relpy i had to my post on another forum

'hi mate i had both my drive shafts changed and when i got car back the abs /esp light was on so i pulled the boss, and he said yeah we noticed that so they stuck comp on and it was sayin o/s wheel sensor so they wanted 150 quid off me 4 new sensor.. i took the risk and bought a abs sensor from scrap yard 4 £20 bingo the light went off and not been back on'

Could be worth having a look to see if the sensors are sat in the hubs correctly.

I'm popping in to Fords tomorrow so i'll let you know how i get on.