In the right hand side of the engine bay you will see a little black box that sez DIAGNOSIS, Open it up and put a bit of wire between the terminals T & E1 then turn the ignition to "ON" and it will then be in diagnosis mode, The engine light will flash out codes, Just count the amount of times the light blinks (6 consecutive flashes = code 6), There will be <1 second betwwen each flash and a 3 second pause between each code.