po 700, po872 one time an po700 776 another time732/747/734 sometimes 700 alone wich is crazy thats trans controller,, ive seen in past on other trans that theres allways sub codes with 700, also this is an allout ATS trans with auto pilot,,changed fluid an filter jus the usual grey fluid no big stuff but still locked out in third but never same gear,,,,the truck set for three days an wouldnt start {2 red top optima bats} started truck an volts say 14v went to clear codes an reader said low voltage charge bats,,,could i have bad cell in one of bats to cause voltage drop while running also have several amps in truck...thanks for reading any help is appreciated.

Kinda scared me when you said erotic codes lol.

Fill out the sig with your mods so we know what to deal with.

full ATS tran with auto pilot controller an lockup converter,,EFI live Banks<cold air jobes boost controler, 488 yukon ring pinion yukon locker semi wheels. 2003 chevy duramax LB7

Check your batteries for sure, Optimas have a tendency to run low if they have set for long periods in the cold. They always seem to bounce back, but not untill the battery has been warmed clear through. As far as the codes, check the wireing harness closely, all the connectors, and also the co-pilot wireing. Make sure all the connections are weather tight, and are not corroded at all. Start with this cheap and simple stuff first, then move on to things that could be more expensive.

yea i could understand if it threw same codes everytime but it dont,,so wanted to see if bats could do that even no alternator is good,,thanks

Check your batteries for sure, Optimas have a tendency to run low if they have set for long periods in the cold. They always seem to bounce back, but not untill the battery has been warmed clear through. As far as the codes, check the wireing harness closely, all the connectors, and also the co-pilot wireing. Make sure all the connections are weather tight, and are not corroded at all. Start with this cheap and simple stuff first, then move on to things that could be more expensive.

X2. I would definitely check for a loose connector. Especially a ground.

I am assuming that you are meaning Co-Pilot with the ATS Trans.

yea,, sorry , co-pilot

Wow, you are lucky.....erotic trans codes! Wish my wife would give me "erotic" codes!