Factory integrated brake controller not recognizing trailer.

[dkad260]

Just getting ready to start..just got back home.

Going to go over all the steps first. According to GM TDS tech, I needed a 24 hr subscription to tis to use the Tech 2 as a pass through....apparently the TDS doesn't recognize the handheld Tech 2 right now?? Weird.

 

[swathdiver]

Just getting ready to start..just got back home.

Going to go over all the steps first. According to GM TDS tech, I needed a 24 hr subscription to tis to use the Tech 2 as a pass through....apparently the TDS doesn't recognize the handheld Tech 2 right now?? Weird.

@Joseph Garcia

I think Joe said to click past that to the next page and then you can pick it. Haven't done it this way yet myself.

 

[dkad260]

I'm at this screen, when I select "Service Programming System" in the Tech 2, I can only go up to 2007.





I can select the Tech 2, but get this message on both re-program, and replace and re-program.

 

[swathdiver]

See if this thread helps until the cavalry arrives: https://www.tahoeyukonforum.com/thr...-gm-techline-connect-for-tech-2-users.129842/

@sunureu13 @91RS @Fubar0715

 

[dkad260]

Thanks @swathdiver good info.

No progress yet, going to get on a call again this AM and see what we can do.

This has definitely been a frustrating endeavor.

 

[dkad260]

My generic USB to serial is one issue, going to get a Tripp Lite cable and then we are dealing with a possible Win 11 issue but need the different cable first.

 

[Joseph Garcia]

It seems that the only current fully successful approach is to get on the phone with their support Techs and have them issue a 24 hour license back to the original TDS program and help walk you through the process to complete the programming/reprogramming.

 

[dkad260]

It seems that the only current fully successful approach is to get on the phone with their support Techs and have them issue a 24 hour license back to the original TDS program and help walk you through the process to complete the programming/reprogramming.

Yes, that's what I had done this AM. They were very helpful and I did a screen share with the agent and she discovered my USB to serial adapter was not compatible.

Once this process has (hopefully) been resolved, I will surely source a MDI or something for future programming.

 

[dkad260]

Update...

I picked up the Tripp Lite USB to serial adapter, and the tis recognized the Yukon.

I successfully re-installed the current software to the FPCM, but unfortunately the Yukon still does not recognize the trailer.

Not sure what else to check.

 

[dkad260]

As I'm progressing through this dillema, trying to diagnose the integrated system, I keep getting this...



At the same time I have this...



If there's a fault, would there be a code set?