In this excerpt from the 2011 ATSG Seminar class, Instructor Wayne Colonna talks about 41TES and 42RLE VLP transmissions with a P1745 DTC. These codes are usually the result of a problem with a pressure control solenoid that should be reducing line pressure at idle.
In this transmission tip clip from the 2010 ATSG Seminar program Wayne Colonna presents some issues about bore plugs on Honda and Acura 5-speed transmissions. He talks about the resulting shift issues that can occur and ways you can fix the problem in such a way that comebacks are less likely.
From 1993 to 2008 the GM 4l60E transmission used a pressure switch manifold to tell the computer what gear was selected. In this Tip Clip instructor Wayne Colonna gives a detailed technical overview of this component with some helpful info on diagnosing associated problems.