Monkeywithawrench
Senior Member
So my fire dept has a '92 Freightliner with an Allison MD3060. Has really low hours and miles on it (this is just an FYI). The transmission has a push button control head. Coming up with Cat's Eyes on the control head. Tried plugging into it with the Allison software using Nexiq USB II bluetooth and the 12 pin GM connector that was the thing back in the 'day'. Not connecting. Pushing the Arrow keys (up and down simultanously) doesn't come up with codes either.
SO.......anyone had any experience with said problem?? And, here's the fun part; Allison discontinued this model back in 2002 and let their parts deplete over time (heavy sigh). I am leaning towards the computer, since the control head isn't talking with the ECM and I can't come up with any codes.
So turning on the master switch and then the key switch it flashes quickly from 'NN' on the display to CAT EYES and 16 quick beeps. Cycling the key switch it just goes right to CAT EYES and the 16 beeps. I've tried using the 1903 and 1708 (I think that's what they are) protocols on the software, still not talking.
So any help would be appreciated, Thank you!!
SO.......anyone had any experience with said problem?? And, here's the fun part; Allison discontinued this model back in 2002 and let their parts deplete over time (heavy sigh). I am leaning towards the computer, since the control head isn't talking with the ECM and I can't come up with any codes.
So turning on the master switch and then the key switch it flashes quickly from 'NN' on the display to CAT EYES and 16 quick beeps. Cycling the key switch it just goes right to CAT EYES and the 16 beeps. I've tried using the 1903 and 1708 (I think that's what they are) protocols on the software, still not talking.
So any help would be appreciated, Thank you!!