Chevy/GMC Duramax 2011 LML Discussion of Chevy and GMC Trucks with LML Duramax Turbo Diesel Engines

couple of trouble code U0101

Old 11-30-2013, 10:50 AM
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Default couple of trouble code U0101

Going limp in cleared the code stay in limp mode. i thought in was TCM i got other nope.
was told to check batteries i end up change both of them . the cold front killed both of my batteries i thought it might have been the tv i have for my kids i disconnected it . till i see what happen. But checked the charger system because it was a bit high not the problem.
THIS CODE U0101 says lost of signal to tcm
turn of stability track

i need wiring Diagram for 2011 3500 hd 4x4 LML anyone please thank you
Old 12-02-2013, 08:21 AM
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Sorry about that was in a rush didnt read what i wrote at all.
First i got a trouble code OF U0101
second i have programmer H&S with delelte dpf
third i change both batteries and top off all fluids looked for leaks.
fourth when thought clean all my grounds so far but two left it got late last night. finish that today.
the truck will run and drive till somethinf does happen causing it to go in limp mode.
the only other thing i have left to solve is i have a little bit of overcharging happen with alternator getting 14.65 .
I know that in Allison transmission programming on the industrial side shutdown go into limp mode if there any overcharging.

My batteries tested good one day and two days later where both die.
still dont have much of a clue because on all the forms that ive read U0101 is such a basic code that cover so much ive have to be very meticulous . im open to any ideas .ive checked the abs wires, the yellowwire like in the lbz, checked all the fuses, test the ignition , grounds, so only got left is the overcharging
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