OBD Communication Failure
So, I've got a Tioga 24' Motorhome with a 1996 Ford E-350.. I go to get this beast smogged.. It passes everything but the stupid MIL/Check engine light due to an OBD communications failure. I'm hoping you guys could help me out with a few troubleshooting ideas to figure out what the f**k is going on, if it's just a blown fuse or if my aftermarket radio is screwing with something or if I'll need to replace the ECM.
Help is much appreciated, brothers.