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Possibly, no two Newells are alike. That looks an awful lot like the j1708 connector. Where is that connector located?  And who knows if someone in the coach's past replaced the ALDL connector with the more common J1708.

This connector is in the front most driver side bay in front of the steer tire.  There is the HWH stuff in there, and some other computer lookin type things..

I have that same kind of connector in that bay, assumed it was for the abs. I would look around inside under the dash.