Remote Start Troubleshooting

[Fless]

Oh man, I WAS selecting the C option, thought "C" was for Chevy!

Welp, that makes sense now!
Thanks Fless!! I would have lived my whole life not knowing...

Ha! Now you're on the right "path!"

 

[mikez71]

Heres a few snapshots for comparison..

 

[mikez71]

 

[DaveO9]

Found a company that does TCCM programming...

GM TCCM Transfer Case Control Module Programming — Ewalt's Auto Tuning

This listing is for a transfer case control module (TCCM) that is programmed/flashed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the TCCM you will need to provide us with your VIN so we can program it before we ship it to you. The followi

www.ewaltsautotuning.com

Thanks, I will contact them to see if they can help.

One thing I was thinking about, regarding the fact that RA does not list a TCCM for single speed t-case: I wonder if the 2-speed one covers both single and 2-speed? I noticed that my original TCCM P/N is listed in the long list of OEM TCCMs it replaces.

View attachment 445548
View attachment 445551

Thanks for posting these screen shots. I went through every parameter and compared with mine. The only one that was significantly different was "Range Actuator Command" - yours is 0%, mine is 49%. Not sure if that means anything. I was doing the diagnostic key-on, engine-off, in 2-high. Looks like you were in 2-high as well.

I re-ran the ATC learn procedure with the Tech 2, just for grins. No change to remote start status.

 

[mikez71]

Interesting, I was also key-on, engine-off, 2-hi.
And your theory makes sense why we only see one TCCM module forsale.

Might check what the Tech2 shows with your old TCCM regarding "range actuator command"