Stick got in my truck

[KFhunter]

Stick popped up and did something to my truck.

2016 Colorado 4x4 trail boss z71

Guages are wonking out, fanning back and forth like you'reflicking tbe key on and off fast.

I'm getting messages in my dash like
"steering assist not working use caution"
"Service 4x4"
And other messages

Oil pressure is going from - - counting up to 80 then back to - -

I had an issue very simmilar when the truck was brand new, turned out to be a loose wire in the fuse box.  This time though I heard the stick crash and make a ton of racket underneath, then immediately seen the dash go wonky and I stopped immediately. 

No leaks, no smoke, nothing could be found.

Started fine, runs kinda bad.  Shifting is off and harsh.
ABS light continuously on and brake light on the dash continuously on.  Brakes work fine, no bleedoff, no leaks.

I got home and spent hours on the creeper, pulled all the skid plates off, traced down every plug, every wire, looked for pieces of sticks to see where it mighta hit, nothing.


Took pelinium off, took fuse box apart, found out why my 3rd brake light doesn't work on the trail boss bar, pin is out of the fuse box.  Another small purple wire is out too, but taped, assume thats tbe 3rd brake light adove rear window. gonna find what it goes too for sure.

But for the life of me can't find what's wrong with the dash lights and guages, why it runs bad, shifts bad

[jrebel]

Two thoughts.....

1.  Ground wire is not making a solid connection and or was damaged with the stick. 

2.  Completely coincidental that the stick made a noise and you have a bad alternator. 

Not familiar with that exact truck....but find it very hard to believe a stick hitting the undercarriage would cause major electrical problems.  Could the noise you heard have been arcing or something mechanical going on....like a timing belt or chain?  Just thoughts....

Definitely gonna follow to see how it turns out.  Good Luck.

[Platensek-po]

Two thoughts.....

1.  Ground wire is not making a solid connection and or was damaged with the stick. 

2.  Completely coincidental that the stick made a noise and you have a bad alternator. 

Not familiar with that exact truck....but find it very hard to believe a stick hitting the undercarriage would cause major electrical problems.  Could the noise you heard have been arcing or something mechanical going on....like a timing belt or chain?  Just thoughts....

Definitely gonna follow to see how it turns out.  Good Luck.

I was gunna say to check the alternator as well but then couldnt think how the stick could have done that. Definitely very weird.

[KFhunter]

The crash of the stick, and the dash were simultaneous, chimes and stuff going off like I didn't have my seat belt on.
 

[KFhunter]

It sounded like a stick, I didn't see it.

First thing I checked was the serpentine belt because it could have made a sound like that too, but it was fine, no frays or anything

[JBar]

It can happen, know someone that ran over a stick and it popped up just right and did something to the wiring harness on his Tacoma. $1100 later and some stuff still doesn’t work

[fishngamereaper]

Sounds like a TCM or maybe the BCM.

TCM would cause your abs to freak out and could make a similar sound...
Just an thought..
Otherwise you probably knocked a body ground wire loose.

[Alchase]

I had a piece of road debris pop up and “baaaam”!
30 seconds later I had no throttle, and the truck coasts to a stop and dies!
I pushed it into parking lot, crawled underneath, and there was a piece of metal driven right into my Catalytic Converter completely blocking it. I tried to pull it out without thinking, and burned the crap out of my hand. I waited about 20 minutes and pulled it out with my othe hand, LOL
Drove home with the most annoying exhaust sound ever, but it drove.

Sorry probably won’t help you though!

[KFhunter]

Sounds like a TCM or maybe the BCM.

TCM would cause your abs to freak out and could make a similar sound...
Just an thought..
Otherwise you probably knocked a body ground wire loose.

A TCM can nuke itself and make a racket doing it? 

[fishngamereaper]

Sounds like a TCM or maybe the BCM.

TCM would cause your abs to freak out and could make a similar sound...
Just an thought..
Otherwise you probably knocked a body ground wire loose.

A TCM can nuke itself and make a racket doing it?

Ya since it controls amongst other things the anti lock system and possibly any limited slip options the truck has...the system goes haywire your abs could freak out ..
They can also throw a bunch of codes that would explain the other symptoms...I've seen it on GM trucks before..
Just a possibility...again it also smells of a primary ground wire...there are probably 3-4 at least on that truck.

[highcountry_hunter]

I would check the main wiring harness from the ecm, should be easy to see if it’s been jabbed hard by a stick

[fishngamereaper]

And get it on a code reader.

[jackelope]

More than likely you’re going to need a scan tool that can read communication fault codes and not just Powertrain fault codes.

ABS, traction control, etc would all be handled through the ABS controller.

This truck probably has electric power steering and if so will most likely have some sort of electric power steering control module.

All the modules, regardless of what their acronyms are, communicate on a network. You’re pissing in the wind without being able to read fault codes if you can’t see anything obvious.

[pd]

That darned stick!  I have had it, too.  Brand new truck.

I never had an electrical problem because of the stick.  I feel your pain.  Keep at it.  Sending you good luck smoke signals now.

[cooltimber]

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