took the car for its mot today and all was fine untill he got a great big bar out and started to smack it around the car
ive used this garage for years and they have never done this

new tester they have now got and he is a right t***

he got it to the brake test and noticed the abs and tc light was on and carried on with the brake test and said its fine it wil go out in a bit
after he finished he took the car out the garage and said he will take it for a spin to clear the light, and when he got back the lights was still on
he conected the computer to it to try and read the codes and there computer would not read it
he has failed the car now due the abs and tc light being on
is there a way i can get this light off or anything i can check
ive looked round where the sensors are to see if there is any damage and to what i can see they are all fine
ive tried driving and then braking sharp and braking lightly and even tried just wheel spinning the wheels to try and clear it but nothing seems to be working

any ideas anybody