Stick got in my truck

[jackelope]

disconnect your battery ,wait 1 minute, then hook up battery. worth a try.

100% agree

[KFhunter]

I didn't dissemble the fuse box w/o disconnecting the battery first, it's been done and done and done

[AROTTY]

As has been said if you have done a visual inspection and haven’t found anything I’d pull some codes. You might as well get a wiring diagram and a multimeter ready. Had a lumina that had an wiring issue in the harness and it took me a day of testing before I tracked it down.

[Smokeploe]

Check the wires going to each wheel, the abs speed sensor.  Check the main battery wire on the back of the alternator, all of your grounds and the wires going to the starter. Also check any of the wire looms along side of the frame, both sides and any wiring and plugs going from the frame to the engine.  Any of these if they get damaged can cause what you are describing

Good luck
Smokeploe

[KFhunter]

Yup, I'm at a loss.  Hooked up code reader I keep getting "this feature is not supported!"  Won't pull codes, or says no codes.

The code reader isn't functioning like it should, I've use it several times from not having gas cap on good to replacing a smog sensors. 

I checked all the wires front to back, grounds seem tight and no corrosion I can see just a bit of dried mud that like to get in my eyeballs.

I yanked the computer off the firewall, the aluminum one, no burn marks or smells seems normal. 

I don't know where other computer is yet

[KFhunter]

[slowhand]

Call Dealership, have vehicle towed there, They will diagnose the problem and call you with an est, decided to have them fix it or fix it yourself, vehicle gets fixed, You are happy.
I am a dealership Tech and Your in over your head. I wish You luck, but I recommend to leave it to the pros before you cause it to get more costly. 

[KFhunter]

it drives ok

can't I drive it? 

[slowhand]

it drives ok

can't I drive it?

I though above you mentioned trans shifting issues? that doesn't sound like a drive it there to me? maybe you are super close to your dealership?

[pianoman9701]

I hit a ditch in my Tacoma two years ago and the skid plate came down hard on the side of it. The airbag light came on and I was afraid all the way home the bag would deploy. I unhooked the battery - no luck. Toyota had to reset something in the software and all back to normal. See if you have a mark or some cellulose on the skid plate where the stick hit.

[jrebel]

There are quite a few youtube videos with electrical problems with that generation and model of truck.  Quickly watching three of them.....it appears to be two grounds causing all of the problems.  It would be worth looking at. 

[SuperX]

I had a similar problem with my new 2019 ccolorado.  Turned out to be a worn wire in the loom, they had to do something to keep it from happening, probably black taped the worn area, maybe replaced the wire or spliced it, but they didn't say.  It was in the front wiring loom, I believe.

This document may help if you have the diesel.
https://gm-techlink.com/?p=13907

[buckfvr]

Call Dealership, have vehicle towed there, They will diagnose the problem and call you with an est, decided to have them fix it or fix it yourself, vehicle gets fixed, You are happy.
I am a dealership Tech and Your in over your head. I wish You luck, but I recommend to leave it to the pros before you cause it to get more costly. 

Not a lot of love floating around for the local dealership.......  or confidence for that matter.   

[jackelope]

Yup, I'm at a loss.  Hooked up code reader I keep getting "this feature is not supported!"  Won't pull codes, or says no codes.

The code reader isn't functioning like it should, I've use it several times from not having gas cap on good to replacing a smog sensors. 

I checked all the wires front to back, grounds seem tight and no corrosion I can see just a bit of dried mud that like to get in my eyeballs.

I yanked the computer off the firewall, the aluminum one, no burn marks or smells seems normal. 

I don't know where other computer is yet

It won’t work for you because you need to be able to pull communication (U) codes and not powertrain(P) codes. The stuff you mentioned would all be P codes. Most general purpose(cheap) scan tools won’t pull U codes. Power steering, Abs, etc codes won’t be powertrain codes. You’ll need next level scan tool.

[KFhunter]

I FOUND IT!!!

It was a freaking stick, the wound was up under the wheel well.

Might be a bugger to fix, gonna hafta cut/splice with shrink-wrap butt connectors

One wire is completely cut.