tourque converter circuit malfunction

What is your question?

i bought my truck about 8 months ago and i have never been able to get a straight answer on this no matter who i have talked to. i have fixed everything that was wrong with the truck but this and i cant figure out what to do about it. my check engine light is on for a tourque conveterter circuit malfuction. is this an internal part or external? i would like to get this fixed asap as my truck is up for a nys inspection. can anyone point me in the right direction please