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Showing results for tags 'towing mirror jumper harness'.
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Hello Everyone, I wanted to create a "How To" thread on showing the installation of the RZY - Towing Mirror Jumper Harness. This is GM Part # 23387133. In the video, I reference Part # 23387134. Part # 23387134 is the Installation Manual Part # and not the harness part # itself. This RZY Jumper Harness is needed for all 2014 and some early 2015 Trucks that are looking to upgrade their mirrors to Towing Mirrors. On these year trucks, the circuits in the door connector for the Cargo/Courtesy Lamp, Park/Running Lamps, and Turn Signal Lamps are not present. Please refer to the Vehicle Acceptability for Retrofit Guide Here to see if you need this harness: https://www.dropbox.com/s/q4eldhgg2x8i10q/Camper%20Mirrors%20-%2023371780.pdf?dl=0 I also advise to visually inspect the door connector and confirm you need this harness. The pins you'll want to be looking for are: Pin # 9 - Cargo/Courtesy Lamp (Circuit # 1430) Pin # 11 - Park/Running Lamp (Circuit # 709) Pin # 41 - Turn Signal Lamp (Circuit # 1314) If ANY of these pins are missing, you'll need the RZY Jumper Harness. The Installation Instructions can be found here: https://www.dropbox.com/s/pz2y2o9kj02g66p/RZY%20Installation%20Instructions.pdf?dl=0 How To Video Here: ENJOY! Let me know if you have any questions!
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