front hub

i have the dreaded three amigos , on all the time , so searching round i found play in the front offside whell bearing , quite a lot so i got a new hub with abs and changed it today , oh joy , everything went well ,
put it all back together and went out for a run , it has deff made the steering loads better but the lights are still on
do i have to have them reset or is there another problem ??
anybody near doncaster with a diagnostic machine i could borrow for exchange of a few beer tokens ??

get it checked ,but remove oring of sensor first and try that ,ive had alot where sensor wasnt quite in enough