Cascading codes all of a sudden

[Capone81]

2024 2500 AT4X HD 6.6 Duramax with 57k miles. I just bought it from a dealership here in Gillette, drove it maybe 20 miles with no issues. All of a sudden it is throwing
-Check engine
-Adaptive cruise unavailable
-Service traction control
-service esc
-Service trailer brake

Had it scanned and looks like a nightmare. Attached a picture of the scan results. Its going back in on Aug 6th for diagnosing. Does this seem like a harness problem? Any input is appreciated. Very disappointing as this is my first newer truck and first diesel.

 

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[Capone81]

Here is the codes

 

[pinebaron]

Could be a low battery issue. Try disconnecting battery or batteries for about 30 minutes, reconnect and see if codes persist.

 

[Capone81]

Could be a low battery issue. Try disconnecting battery or batteries for about 30 minutes, reconnect and see if codes persist.

I did that and while they were unhooked, I load tested each one since my multimeter decided to grow legs and leave home and for 15 seconds it says they are good to go. It goes back in and I have an extended warranty that will cover alot but I wanted to get a headstart so we are not just guessing and throwing parts at it

 

[pinebaron]

I did that and while they were unhooked, I load tested each one since my multimeter decided to grow legs and leave home and for 15 seconds it says they are good to go. It goes back in and I have an extended warranty that will cover alot but I wanted to get a headstart so we are not just guessing and throwing parts at it

I had that issue when both batteries were toast, following a failed software update; dealer replaced both batteries.

 

[Capone81]

I had that issue when both batteries were toast, following a failed software update; dealer replaced both batteries.

Not sure if its the same kind of update, but my radio screen said there is an update available. Connected to our wifi and tried twice but dont think it was successful. Never had a vehicle that updated via wifi, so not sure if that was just something for the infotainment or what.

 

[pinebaron]

You need to be in a strong wifi signal area; in addition, connect a battery tender to your battery/s before commencing the update.

I'm guessing but below is another 'suggestion' assuming issues relate to a failed update.
Try resetting your software to factory/system from your infotainment screen prior to software update.

 

[Phil-AT4]

I did that and while they were unhooked, I load tested each one since my multimeter decided to grow legs and leave home and for 15 seconds it says they are good to go. It goes back in and I have an extended warranty that will cover alot but I wanted to get a headstart so we are not just guessing and throwing parts at it

Could be the battery or batteries could have a cell going bad. These vehicles are very sensitive to the voltage. A little bit low and the computer starts throwing codes. I would take it back to where you purchased it from and have them throw in new batteries.

 

[gemarsh]

If it cranks and runs, my money is on a bad ground strap. Like the one between bolts 3 & 4 in the attached photo...

 

[gemarsh]

Peel back your felt inner fender well and look for green crusty's on the ground strap with a flashlight.

 

[Capone81]

Peel back your felt inner fender well and look for green crusty's on the ground strap with a flashlight.

Thank you, ill try that