Transmission will not engage, Code 63 1993 sr5 v6 3.0L

I was on a long 1hr trip and on my way back I accidentally hit 2ND gear while going 70 MPH. It shifted back fine but soon after that I had issues down shifting, and I slowed down I lost power, and once I got to a light I couldn’t go any faster than 10MPH. I made it home on a struggle. The engine runs fine but the transmission would not engage at high RPMs, even though I could drive it around the block. Today I tried to get an OBD 1 code, but I had to engage the transmission to get the lights to blink because all I would get was a continuous blink when I connected the TE1 and E1 pins in the diagnostics panel. I got it to finally blink 6 times then pause and then 3 times, which I assume is a code 63. Well, while I was revving the engine, it tried to shift in high gears once I got up to 3 RPMs, then it stopped moving entirely after I did that. It would drive one it’s own before, but not it wont reverse nor will it drive. The transmission will not engage at all. Any ideas as to what the problem might be?

It is an automatic transmission.

 

Standard or auto?
Have you tried all gears, I had a Toyota transmission fail where i had reverse and 4th gear only.
I also purchased an SUV with what was supposed to have a bad transmission, after replacing it come to find out there was a driveline coupling that failed, I found this because went I would go into park I would hear the parking pin trying to lock until the transmission came to a stop.
So I put in in drive and looked underneath, and found part of the shaft turning and back half was not.
If you have an auto I wander if the torque converter failed, anyway good chance your going to have to pull it, then again might be something simple.

 

Automatic Transmission

 

I have tried all gears 4x4, drive, 1, 2, reverse, none of them work now.

 

I would think planetary damaged gears would make some serious noise, so this leaves the torque converter possibly.
You probably don't have the setup to check transmission pressures, but you could take one of the cooler lines off and see if you have good flow coming out with engine running, I do this when I service transmissions to get all the old fluid out.
It will not be high pressure but definitely fluid movement.
No fluid would tell me the transmission internal shaft is not rotating driving to oil pump.
Again pointing to an issue between engine and transmission, torque converter, flywheel.

 

There is a sensor that if it goes it will cause the tranny to go into limp mode. Mine did that something like 25 years ago. Sorry I cannot tell you where it is. But since you are now dead in the water, sounds like something more serious.