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How to Use a Diode Kit to Install Tow Bar Wiring on a 2014 GMC Terrain

Question:

specific wires to connect in rear of 2014 terrain greenyellowbrown which three

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Expert Reply:

Based on the info you provided I think I have determined that you are trying to wire your 2014 GMC Terrain for tow bar wiring with a diode kit like part # RM-154.

Your vehicle has combined taillights so you would need to just follow the instructions in the attached FAQ that I attached.

We do not know the specific wiring codes for your vehicle so the best recommendation I can give you would be to use a circuit tester like our part # PTW2993 to determine what wire carries what.

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Jameson C

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