Mystery switch / tc lock up switch problems
 

Hooked it up just as TST shows...95' w/ 47rh goes to pin 54 at the pcm the switch to ground... when going down the road and flip it on the ign fuse blows out as soon as the tc looks up...The tc only locks by it self with the pedal hard on the floor but unlocks almost immediately like the pcm senses a short then unlocks it but with the switch it pops the ignition fuse...What would cause that?

Blowing the fuse with a lockup switch sounds almost impossible.
Sure you're hooked up to 54?
There's more than one blk/org wire at the PCM.

Also a lighted switch can cause this type of problem unless the lighting circuit is totally separate from the lockup.

hooked to the orange and black wire from pin 54...standard 20amp 2 post on-off switch no light...It kicks the converter then blows the fuse...I'm thinking bad solenoid in the tranny