That's the cause. This fuse (which is hot at all times) supplies power to the instrument cluster which in turn sends a vehicle speed signal to the powertrain control module (the computer) which controls the transmission.
In other words, when this fuse blows, it doesn't know how fast the vehicle is going, so it can't shift the transmission.
Let me continue to study this wiring diagram and I will get back to you with my ideas as to where the problem lies in just a little while.
Thank you! My husband is monitoring this thread. I will be deferring to him in this situation. I'm hoping to someday change my own oil and rotate my own tires, but that is probably my limit.
If you have any questions, ask and I will forward them on to him.