Videos are provided as a guide only....
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today we are going to install part number 119175 from Tow Ready, and this is their Circuit Protected Converter Wire Harness. And we are going to install this on a 2003 Mitsubishi Montero Sport. To install this wire harness, we are going to have to get behind both sets of tail lights on this vehicle. We are going to take off the tail lights, get to the wiring behind them, and then we will make our hard-wire connections to the circuits themselves. We will just go ahead and take the lights off loose. The reason why we are taking the lights off is so we can find the function of each wire inside here, rather than just poking a bunch of different holes in the wire. So it saves a little bit of wear and tear on the wire. Next we will take some bolts out and loosen up the fascia so we can run our wires from below up through here, along the edge of the body work and into the tail light.
Just to give you an idea of what is going on, all this assembly is going to be hidden behind the plastic here. We are going to run the fish wire from here down to the bottom. To make things a little bit nice and neat, we are going to actually cover all this up with electric tape so when it comes out exposed it will not be as obvious. All we are going to do now is just pry this back a little bit and run our fish wire through. And we will take our wire and wrap it around the leads for our converter box and pull it back up through. We will leave slack to work with for now, and then we will take up the slack as needed.
First off we are going to install our ground screw, which we are going to put right into the bottom of our sheet metal here. We have got our ground screw installed. We will hook up our tester and then we will go through the functions. And we will have somebody else get in the front of the vehicle and turn on all the functions. OK, first we will go ahead and check for running lights. OK, turn them off on all right, that verifies the signal, and that looks like the green wire with the white tracer on it. So, we will go ahead and make our connections to the wire. Brown is going to be running lights on our wire harness, so we will hook up to that. We are going to use a Scotch lock to make our attachment, but you can use any form you like, but this seems to work the best. Next we will go for the left-turn circuit. All right, and that looks like that wiring is green with a blue tracer and silver dots on it. Yellow is going to be left turn on our wire harness. All right, next we will look for the brake circuit. OK, off on off that looks like an all-dark-green-color wire, so we will attach our red wire to the brake. All right, now we can go ahead and just reinstall the tail light assembly for this side. Let us go ahead and run our green wire all the way across, up behind the bumper.
Go ahead and do the same thing for the other side. All right, we will go ahead and test for the right-turn circuit. OK, that looks like green with the yellow stripe and silver dots. We will just go ahead and make our connection to that. We will go ahead and start installing our tail light on the passengers side. We will go ahead and put our screws back in for the bumper fascia. All right, next we will go ahead and attach the converter box to the sheet metal right there behind it. We will clean it off first with cleaner and a paper towel. Next what we are going to do is route our 4-pole wire down out to the hitch. What we do not want, let us just go ahead and bundle up, and we will attach it to the back side of the bumper in one of the frame brackets. All that remains now is one final check of the wiring harness itself with a light tester before you try it on a trailer. And there you have it for part number 119175 from Tow Ready.