I think I found my shifting problem, but where can I find a new one?
 

After noticed my 1991 comanche nearly stalls out on hills, I did the "key off, key on" three times in 5 seconds and got the trouble code 15. Because I believe this can lead the transmission to malfunctioning, I replaced my speed sensor at the rear of my transfer case, but still got code 15. While tracing the wires for a broken or shorted circuit, I wondered across what appears to be another sensor. I ignore it because I'm focused on the wires, but after I determine the wires are OK, I return to this other sensor. I believe its called the "output" speed sensor, but I can't find it on my local part stores' websites under that designation. Am I just calling it the wrong thing, or is it in another place? Included arepictures detailing my situation to help those helping me.

AW4 transmission and NP-231 transfer case.



https://cimg9.ibsrv.net/gimg/www.che...ca14a456f2.jpg


https://cimg2.ibsrv.net/gimg/www.che...8fed2ccb1e.jpg


found this in the circled location on the T-case


https://cimg3.ibsrv.net/gimg/www.che...8cc0056c72.jpg

https://www.google.com/search?client...el=fs&tbm=shop


That is nothing more than the 4x4 indicator light switch.


You are chasing the rabbit down the wrong hole.

Yup.

Hmm, well, it must be bad regardless because my indicator light in my dash don't light up when in 4wd. bulb is good.

So, anyone know where I can begin with my shifting problem? I just had a helluva time just trying to get the transmission going enough to get me out of the driveway just to learn it was my ******* mistake to leave the TCM unplugged for a month after some dash electrical work. I remember crawling home in 1st at 20 mph on several occasions before I realized this and I nearly cooked the fluid because one of the oil cooler lines was kinked. could the transmission possibly have suffered permanent damage because of these mishaps?

And I'm still getting a code 15

Very likely you cooked it. Kinked cooling lines and starting out in a high gear for how long?