| www.etrailer.comVideos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information. Today we are going to show you the install of part number 18172. It is a 4 pole wiring harness which needs to be hardwired through the vehicle. It is not vehicle specific but we will be showing the the typical application of it. The vehicle we will be using is a 1999 Pontiac Grand Prix. The wiring is located behind the paneling here. In here we will pull apart the covering here and get to the all different kinds of wiring. Too find out what color does what we will need a test light. You connect it to a wire and turn on one function at a time. Running lights are on as we touch the wires with the wire tester to find the action of each wire. Now that we know which one is the running lights circuit on your 4 pole. We will go ahead and start with the running lights, and to verify we will turn off the running lights and make sure that is our circuit. So we will go ahead and install the running lights to our 4 pole. On your packaging you can tell what wire does what. Green is right turn, brown is running lights, yellow is left turn and white goes to ground. We are going to use scotch locks to make a connection. Use pliers to help push it together and lock it into place. Once you are done with that it is always a good idea to check your connection on the 4 pole. Go ahead repeat this for connecting all the wires. Some types of cars have separate <b>...</b> | Views:9434 0ratings |