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Showing results for tags '7 pin'.
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Hello, I recently bought a new sierra 1500 year 2020 with the technology package. My boat trailer lights are not constant. I bought a truck side 7 pin trailer tester from Curt. It demonstrates that internmentant issues on the truck side. I took the truck back twice to the GMC dealership and they say they use a gm certified $200 tester and they state the truck is fine. Any thoughts?
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I have a 2007 1500 classic i relocatd the 7 pin trailer light plug into my bumber due to going offroad occasionally. ever since the relocation my trailer lights have stopped working. i have tested the wires with a voltmeter and nothing comes up. all of the fuses are fine. should i cut the wires at the ground point and test them from there?
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- 7 pin
- trailer lights
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