What can make a gearbox to go bad? on 2003 Acura MDX

My D5 light flases on the darsh board. What is the cause?

Asked by for the 2003 Acura MDX
scan codes and post or get a free diag from aamco
P0700, p0172, p0175, p0325, p0712 what are these codes and where can i find the parts in the vehicle that have the codes? Others are, 61-1, 83-1, 84-1, 77-1, 112-1, 711-1, pls reply asp.