Where are the ecu codes

Hello I was trying to look for the illuminate display of ECU codes, but I could not find.

Can anyone please exhibit specifically where it would be located.

Plus I have a rough idle does anyone know the code it would possibly be, this is my first time dealing with it and dont know much about on the CRX.

See your other post about idle issue. The LED blinker will be under the passenger carpet in the footwell. The codes are in the FAQ on this page of the forum. Count the blinks.