Traile Wiring Harness Installation - 2010 Mercedes-Benz-GL-Class- Video
Today on our 2010 Mercedes GL450, we'll be installing the Tow Ready ModuLite wiring harness with trailer pigtail, part number 119192. To begin our install, we'll first remove the driver and passenger side interior trim panels. Here on the passenger side, we'll simply turn the securing knob, unlocking it, pulling the panel out, and setting it aside. On driver side, we'll turn the knob, remove the door, then we'll need to remove the interior compartment. To do this we'll unlock both fasteners and then pull up and out on the box at the same time releasing it from any other points that secure it. Now on both sides, we can gain access to the manufacturers taillight wiring. Next, we'll need to test the wiring so that we can locate the circuits for our running lights, brake signal, and turn signals as this is considered a 3-wire taillight system where each circuit is independent from each other. To test out lights, we're going to go ahead and remove the connector from the back of the housing. more
11/4/2014 5:57:23 AM
