Wiring Codes???
I confess I don't know what this means. Are you looking for the ECU maps? If you are looking for the wiring schematics, I don't know about online, but I usually pick up a Chilton's shop manual for a car if I don't have the manufacucturer's manual. Chilton's books usually have pretty good schematics and they cost less than $20 US. AutoZone carries them. Jim