No 4wd, no switch lites, no service lite

[rosier1]

2 of the wires looked as though they were probed before. A grey one with a black stripe has a tiny hole in it and a green one looks as though it was scraped. But all of a sudden it stops working?! I never touched it until now. In September of this year it worked. Used it many times in the past since I bought it used with 29k on it.

[rosier1]

I still think the TCCM is at fault here. Gonna slap a used one in tomorrow. If it isn't the problem, I can always sell it here, right?

[The Roadie]

There is almost always an active market for 2003+ TCCMs here or on GMTNation.com

[rosier1]

RESOLVED!! Replaced TCCM from an 03, she works now!! Thanks for your input guys!!

[The Roadie]

THANKS for reporting back! Odd that the Service 4WD lamp didn't light up, but I suppose there's a new way for the platform to surprise us every day.

[rosier1]

No problem. At start I saw the service 4WD light for the first time. Was confusing but so happy its fixed.