We have a 2006 Allegro Bus Cummins 400HP. Does anyone know where the J1939 plug is located on the engine for a VMSpc Silverleaf engine monitor Jib. And what kind is it. How many pins and size.
On my 05 it is under the dash behind the steering column, hard to find but it is there. I don't remember the number of pins but if I can find the info I will post it. Mine was a grey round and had a cap on it.