ok guys im to the point where im about to sell my truck and buy another (although there is no $$ but you get my point) ive been having a war with these codes for the past 4 months now. It used to go into limp mode like twice every month, and it started to happen more frequently. untill last week that i accedently shifted passed "D" into 2 and the truck all of a sudden got stuck in limp mode. i turned it off and then on again hopping that it would snap its self out as it usually does, but nothing!i had to drive back limping. Also, when it would drive normal, i could turn the key to start (no crank) and i could hear the trans. relay buzz and when it would want to go to limp mode it would be quite....???? i did some research and i was convinced that it would be my TCC&Overdrive Selonoind, Gov. pressure solenoid, and Gov. pressure sensor.
so last night i replaced all three and...NOTHING! was still stuck in limp mode i have checked the relay and fuse countless of times and they are ok everytime. Here are the codes that i currently have (code 1682 came up right after it went to limp mode and my battery died withen minutes):
1. 1765
2. 1763
3. 0753
5. 1682

Thats one problem, the other is P0031! same, i have done everything but checked the PCM. and for some reason i think my PCM is the one behined all of this!

HELP ME!!!!!!!!!! Before i take it to the doctor, and the doctor aint cheap!

 

Sounds computer related... I'd just double check all wiring, sounds like you've got a lot going on.

How new is the battery -- that would lead me to believe something is shorting somewhere -- which hopefully is not the case that there is some squished wiring somewhere that is shorting out.

I'm not too familiar with this situation, but I'll give you a bump.

 

If you want to reset your computer, first i would clear the codes for the heck of it. Then unhook both terminals of the battery and touch the leads together. They may have an initial spark..don't worry. This is the internal capacitors discharging. Hold the leads together for 15-20seconds as this will completely discharge any stored power in the pcm. Then, leave them just unhooked for another 10minutes. Hook them back up and see if you still have your issue.