TheDriver Report post Posted July 7, 2011 I have a continuing J1939 error on my motorhome. I have a Spartan chassis with a Cummins ISL350 engine. I have had the motorhome in several times to have this fixed and it is still not fixed. Has anyone had this problem and if so what was the solution. Share this post Link to post Share on other sites
dickandlois Report post Posted February 20, 2012 Driver, I just got to read your post, sent PM to you with a link to some information. Also listed hear. R.M. http://www.silverleafelectronics.com/files/J1708-J1939%20Diagnostic%20Connectors_0.pdf Share this post Link to post Share on other sites