Not connecting to the computer. Usually a blown fuse to the power outlet/cigarette lighter. That fuse also powers the OBD plug.

Fwiw. I'm leaning towards a bad ground somewheres. Sorry, but my repair manual is on my other computer which is broken down.
I would post up the ground system diagram if I could. Maybe someone else has it handy.
OR. I'll bet donbrew will PM you some good stuff to look over.

 

Thanks donbrew. Now, as I was poking around, I noticed an hvac fuse missing. I didn't pull any fuses, just checked the ones that were there. Also found another missing one. So after replacing both of them, Christ's image on a saltine cracker, it's blasting hot and cold air again! The lights are on and it's communicating with the reader. Showing incomplete cycle because I pulled the battery, but we're getting there. Radio is still black which brought my attention to fuse number 6. It's a 20A simply labeled AMP on the BCM. And it's missing. Would this have anything to do with the radio?

 

Don't know, do you have the optional sub woofer and/or amp?

Some fuses are meant to be missing!

 

Got the communication part fixed. Missing fuse. I'll save you a long story here and say that the "jackass" who used the car was really stupid and spiteful. So I may be dealing with a out of spite situation.

 

Not quite sure on that. There are prongs in there for a fuse and it did have a really nice stereo when it worked. Where would I look for the amp? I'm chilling in the ac atm, so I got time :-)

 

It's in the book. And the "build codes" in the glovebox. If your radio says "Pioneer" on it probably.

 

Your 1st post said everything worked fine till recently. Now you state that there are "missing" fuses(??? how could everything have been working) and something about a "jackass".

Would have been nice to know the details and a timeline of repairs/sabotage before I tried to offer my help. Hopefully our good guy Moderator donbrew can help you. I'm out.

 

I'm the "good guy" Moderator now???????

Some folks need to be told about that!

 

Sorry guys. It's been pretty stressful. All of this stems from a family mess. The car isn't driven. It's cranked and maintained. We have been trying to sell it, but they caused a lot of damage. They destroyed the ignition, didn't bother to tell anyone about the fan, and all this got dropped on me because I know what I'm doing 9/10 of the time. I'm sorry if I have frustrated you guys or made you mad. But your help has been super valuable. You saved me.from buying a $300 switch I didn't need, helped fix the ac, and have given me new info. The radio socket is arcing pretty badly when I check it. And has blown 2 new fuses I have placed in it. So I have a grounding issue now to run down. For what it's worth, sorry I'm a bone head and thank you for your help.

 

firemangeorge, I appreciate your help. I'm sorry my time line was all over the place. And I do feel bad I frustrated you to the point of being out of it. But you guys did solve my problems. Honestly and truly. I benched the radio. It is bricked. There is no short with the grounds. All grounds secured, rust free, clean, whatever free. The radio has a dead short that makes it completely unusable. And as I said, you guys helped me immensely. My hat is off to you all. After about 1200 in repair to my wife and mother in law's vehicles in the past 2 weeks, this helped us out beyond words. If you are ever near Charlotte Nc, I owe you guys a beer.