Allison TCM wiring troubleshooting
This troubleshooting guide was invaluable to us while trying to find a problem in the wiring in our MH.
Johnny at Transmission instruments was also very willing and helpful when I called to ask questions.
I tried to post this to the sticky but the post was too old to reply to.
Mark & Nancy
2004 Winnebago Vectra 40KD
Shep dog, R.I.P. Kenzie dog Toad 2015 Jeep Wrangler Willys Wheeler