aside from that it's my understanding that the relay for the defogger is a particular type (6 pin) and that should make it identifiable from the others? also the replays of the same type are interchangeable (if you didn't already know) may help to swap some. also the FSM has many diagrams of the harness and connectors with colour codes... sorry I don't know which one it is but I could work it out. So i assume you can as well. best of luck..