Weird? Been happening for many years on used car sales!
I just offered advice to check under the dash for a black box. If it's there, I can shut off your ignition, from here, anytime you stop/park!

 

Check wring at starter solenoid or itself being bad
Check main ground from chassis to engine
Also measure what the voltage is going into and out of that solenoid
Look at the relay in fuse panel for starting, look at the relay part # and then swap it with another in fuse boxc just for test purpose

Just a thought,
if auto tranny check park/neutral switch or switch on brake pedal if required to be on it for a start

 

That would make sense if it was shut off remotely but not the crazy electrical symptoms that follow.

 

My '07 still oe, and never had "crazy electrical symptoms". Search for tapped wires!

 

Well I will say I am almost ready to sell this gremlin riddled POS. I have been unable to start the truck because the original issue I posted above worsened. Fumbling with the key on and off does not allow it to start. I went and pulled cleaned and seated all fuses one at a time. Also disconnected both terminals and touched them together. Now not all the dome lights are not coming on passenger side floor comes on dim, but driver side is bright, no overhead (yes the battery has voltage, I checked). When door is open and I rotate key to start and off, system locks and will not allow me to completely remove until I close all doors and turn on off several times then the security light goes off and key comes out. Pulled both plugs on the BCM, cleaned, inspected and reinserted. It is starting to sound like the BCM went bad with all the weird electrical problems. But hey the upside, the radio will still come on and I can listen to that. I could really use some help here guys.

 

A bad DCM can cause all kinds of weird electrical issues. Have you checked your wiring for breaks in the insulation and the wires? I had a starter cable that was broken inside the insulation one time. Very frustrating figuring it out but my H3 displayed many of the same symptoms yours is showing. Figured it out by checking all the connections and pulling on harnesses, wires one at a time. Moved it and everything lit back up like a Christmas tree. Insulation on the wire was perfect and there was no exterior indication there was a problem with it.

 

I have been searching for problems like the one you described. I think it is the BCM. What is the DCM you spoke of?

 

He meant BCM. A bad one or improperly connected (loose or corroded) BCM can cause about 100 or so electrical Gremlins. Wipers starting and stopping by themselves, headlights on or off, starting issues, dead battery................ all kinds of stuff.

Disconnect the BCM with the battery disconnected, clean the contacts with CRC, after dry, reconnect firmly. Trace the harness for wear, fraying, cracked insulation, corrosion etc.

 

you might be on to something with the dim light. follow its ground and maybe that is the source of your issues especially if it shares a ground with something important like the BCM.

 

How much voltage did the battery have? Did you test it with a battery tester under load?