Data ports on 2006 Neptune
Quick question about data ports.
My Neptune has a 6 pin port under the dash and a 9 pin port in the engine compartment. I assume that the dash 6 pin port is a J1708 protocol that will connect up to my new USB based VMSpc.
Is the 9-pin port a J1939 protocol that would connect up to the new new wireless VMSpc?
I talked to the people at Silverleaf but I don't think they understood my question because they focused on my 6-pin port. I doubt that I will change what I am doing but it would be nice to understand the ports. The service people either don't know or they don't want us to know?????