Location of Trailer Running Lights Fuse on a 2008 GMC Sierra
Question:
On a trip and lost running lights to our trailer. Brake and turn lights work. Dont see fuse for lights in box under hood. 2008 gmc Sierra duramax. Just need fuse number please.
asked by: Reva
Expert Reply:
From what I found you're looking for fuse # 25 in the underhood fuse block. It's labeled "Trailer Park Lamps".
If that doesn't fix it clean the trailer connectors on your truck and trailer and make sure they're clean. The running lights are in the 11 O'clock position on the truck and the 1 O'clock on the trailer. You can also test the pins on the truck's connector using a circuit tester, like part # PTW2993. If you have power there then the problem is on the trailer and you'll need to trace its wiring to find the problem.
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