Full System Code Reader?
I have a couple of code readers but they only seem to access engine functions. Is there a source to read all codes? I.e. air bag faults. Any companies that let you use theirs or will check for all cod...
Forum Discussion
It really does depend on the specific vehicle. Using my Sprinter chassis as an example, there are "zillions" of codes from every computer in the vehicle that can be accessed via the OBD port, but Mercedes has done an effective job of keeping the chassis-specific codes a secret. There are only a few several thousand $ devices that can read the proprietary codes. You'd probably have better luck on a forum dedicated to the chassis type, rather than an RV forum.
