Posted 8/17/2014 10:12 (#4022630 - in reply to #4022267) Subject: RE: Anyone put an electric brake controller on a semi tractor?
WC IL
I tied into the brake lights at the pressure switch on the firewall for the signal wire, into the fuse panel for power, and to the wiring at the tail lights for the rest. this is on a Navistar. Separate plug.