How do i know if fuses are blown

The fuse for the data control link that the smog machine plugs into could indeed be blown. This could have nothing to do with the other concerns, or everything to do with them. It's impossible to know until you check all the fuses and find out if any are blown -- and then if one or more is -- why did they blow? Often times, the data link shares the circuit with the lighter or power point, and that fuse can blow due to accessory plug issues -- with what is plugged in, like a phone charger. As far as TPS light, radio and back up camera function and door locks -- sure, could be a fuse or fuses, but could also be an issue otherwise in the related circuits, such as a common ground that has an issue. Too hard to say without getting in there and checking fuses first. Your owners manual should have a listing of fuses, their locations, and what they protect.