JerryMcCormick Report post Posted November 18, 2013 I have a 2007 National Pacifica and wish to add a electric brake modulator for the trailer I pull. Thus far I cannot identify the proper wires under the dash to connect to. I have a 7 pin plug on the coach and am good with electric issues. There is a harness not connected to anything under the dash but no "blue" wire so it just doesn't look right. Any ideas? Prefer to do it myself. Thanks, Jerry Share this post Link to post Share on other sites
wolfe10 Report post Posted November 18, 2013 Jerry, Welcome to the FMCA Forum. What chassis do you have-- that may help identify the location of the proper wire. Share this post Link to post Share on other sites
JerryMcCormick Report post Posted November 19, 2013 Freightliner with a 350 Cat Share this post Link to post Share on other sites
wolfe10 Report post Posted November 19, 2013 Jerry, Have you called Freightliner, Gaffney with your VIN? That would be where I would start. Share this post Link to post Share on other sites
JerryMcCormick Report post Posted November 19, 2013 Thanks. I called and they were very helpful with information that the harness is there, the color of wires including what each one does. Now I just have to find it. Share this post Link to post Share on other sites
