TCM codes P0700 and P0888

I was in an accident two months ago in my van SXT model. Damage was moderate front drivers side. I just got van back. having some fault codes P0700 and P0888. The mechanic that fixed the other issues does not have the knowledge needed to troubleshoot issue. From what I was told some rewiring had to be repaired dud to accident. I suspect the issue is wiring or a faulty connection of some type to PCM. I am having a really hard time finding the correct wiring diagrams needed to try to do the proper troubleshooting. Please let me know if you have the proper wiring diagrams so I can get a local knowledgeable mechanic to get this resolved. I have already paid body shop and already spending out of pocket.