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Re: can't read an Allison in a Freightliner
Posted to HD/Fleet Forum on 8/15/2014

uncheck smart connect, I hate using smart connect.

then click connect

a box pops up now select J1708 and usb link or what ever you are using, then click option and select the same stuff again. (or J1939 same idea)

then connect, see what happens

if it s... Login to read more.