most dont come with a wiring harness for trailer but if you look under the driver side of the truck under the bumper you will see a bundle of wires and there should be a paper located on the wires to match up a wiring harness. The ground is a large white wire and hook up other wires color to color. Most wiring harnesses are 4 wire but you should have enough for a 6 wire on the truck but only use 4. I just wired mine up last week!
under the car,behind spare tire,is the wiring harness with access plug for dodge trailer harness (optional) my came with 2012 journey
If all you want to do is change a bulb, you pull the license plate off to gain access to the wiring harness. After you twist the harness counter clockwise to loosen the harness, let it drop down and access it to change the bulb from underneath the car.
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
Taillight bulb replacment/Taillight housing replacement * Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
Remove the taillight assembly to gain access to the bulbs
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops
* Remove the rear inside trunk finishing panel to access the taillight housing mounting nuts * Free the grommet for the taillight electrical harness and the three taillight housing nuts then pull off the taillight housing * Rotate the bulb socket counterclockwise and pull it out of the taillight housing * To remove the bulb from the socket pull it straight out.To install a new bulb in the socket push it straight into the socket until it stops