I really need help with my 2010 Yukon

[OR VietVet]

Hell, I don't even have surface rust anywhere.

 

[gpracer1]

Check the + cable that goes to the bottom of the under hood drivers side fuse box for corroded connection.

 

[Tobin_G]

These trucks run on a local area network (LAN) for comms between the modules, and as such it's vulnerable to interference due to bad shielding, weak terminal connections, etc. There are methods for troubleshooting the LAN comms, so that's where I'd start.

Diagnosing High-Speed LAN Concerns

Diagnostic tips may to help locate the source of a loss of communication with a high-speed LAN module.

www.techconnectcanada.com

I’m not sure how to go about checking if there is a network issue, i’ve checked on the OBD2 port with battery disconnected and I do get 60 ohms of resistance so that would tell me that my lan network is good right, also when I takeoff the battery resets the problem. Is there another way.