My 2017 i800 engine warning light came on today which is causing me some frustration. As someone who (foolishly!!) enjoys doing his own car maintenance and fixing, I'm amazed to discover Haynes don't do a workshop manual for this model. Are there any other options published that I don't know about? My next question which I cant find an online answer to, is assuming the vehicle is OBD2 compliant the vehicle appears to have two diagnostic interfaces, one with the fuses just to the right of the steering column and one just in front of the battery under the bonnet. I'm not sure which to use.. Any help with this would be greatly appreciated..