OBDII Fault Code Reader for Car (Earlsfield SW19)

Wanted Please

OBD II Fault Code Reader .

Engine Warning Light has come on my car.

I would very much appreciate an OBD II Fault Code Reader , so that I can find the fault.

I checked Youtube and apparently there are dozens of reasons for this fault.

I have reset and still the Engine Warning Light comes on.

I am located near Wimbledon Park tube station. Can travel few miles.

Thank you

Kind regards