When I bought my Jeep it was two years old, and had a reciever hitch and a 7 pin trailer plug. The plug has Chrysler imprinted on it, and I assume it is factory.
What pin does what and how do I test to see if the vehicle has a factory break controller?
I have used a 4pin adapter and know the lights work properly, but want to make sure everything else is cool.
Is there any adjustment to a vehicle with a "Factory" brake controller? I remember back in the early 90's grandpa got his truck wired with a "new style" solid state controller that took a signel from the vehicles break light wire on the break pedal itself. I also remember lots of adjusting with brake power and delay to get them right.