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I also had forgotten I had the scanner running a previous log when it happened. But I think it was the relay more than the scanner personally but that is random too

So I got a 2007 Tahoe computer and put in this thing. The transmission controller was fine everything flashed fine is running again and I have my old tune on it but but now I can't get the service...

Thank you. So, it just quit writing and I tried for a while not to turn switch back. Anyway, next time I plugged in and tried to read it, it said unlicensed vehicle and showed me nothing but the Vin...

So, I've read this and several more. It just acted as if ecu wasn't there at all. Chevy place wouldn't back it if they tech2 it and was gonna b200$. So I just bought one same year and same srv #....

So after flashing many tunes I decided I need to tweak it one more time and bricked an E38. The 1st time it's ever happened to me. I've gotten a new ECU out of a 2007 Tahoe. Before I install and...