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My 4x4 is working off and on and it only quits working when you shut the tahoe off and crank it back up. The dealer said it was a corroded fuse because it started working when they wiggled it. All was good for 4 days now its doing it again. I put a new fuse and no change. I put a dorman tccm in...

I tried it for 10 minutes. I will unplug it for longer. Thanks

The dorman modules say that they are already programmed. Have you heard otherwise about them?

I just replaced my TCCM and now my 4x4 indicator light will light up for a few seconds when I crank it up then they go out. The service 4x4 message is on but no check engine light. Anyone have a idea

I changed my TCCM because the code U0102. I used the TCCM from Dorman and after the install nothing changed. Two days later out of the blue the service warning went off for a day and now its back on again. Any help will be greatly appreciated, I don't want to take it to the shop. Thanks