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tenspeedret360's avatar
tenspeedret360
Explorer
May 25, 2014

allison transmission cummins 300 neutral safety switch

Good morning all, and a very happy Memorial Day to everybody. Take a moment to think of and thank those we honor today. And now to the business at hand, and thanks in advance for all the help I'm ...
Twomed's avatar
Twomed
Explorer
May 25, 2014
With the key on and engine running are the lights on in the trans shifter?? If no then you have no power to the trans control unit.

Not sure about the 100 series trans...BUT you should repost your question as Allison 1000 problem. That should get all the truck guys looking that use that trans, and maybe they can answer your question. Also search the Allison Trans forum on irv2.

Good Luck :)

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