[eddie lane]

i have just got a rac fault code reader i can use it 2 read codes ok but it says i can turn off the engine
management light i have read the book i got with it but do not understand it is the someone out there who has got a clue as i have not. must be getting 2 old it is a rac.can.obd2 code reader thanks

[MrDanno]

What car do you have, What codes is it showing?

[eddie lane]

the fault code was p0420 and it was for the catalyst
all i whant 2 find out how i can turn off the eml light on the dash with my dianostic tool the car was a 03 fiesta petrol thanks eddie