Hi,
1994 s-10 blazer 4.3 trans stopped shifting. here is what I have done so far.
Ok this is what I have done
tested the vss for signal by spinning the tire have signal
have continuity from vss to vssb

having conflict with available wiring diagrams. my vssb harness does not have the same combo of wires.
Also I have no continuity from vaab to PCM

a few months ago there was a massive destruction of all the cables from the trany to the pcm. I lost a body mount and all the wires were crushed I fix all that and the car was running fine.

Now its starting the shifting problem again only 1st unless I shift into 2 manually.
anybody have the right wiring diagram or thoughts as how to proceed from here?