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Re: 02 Tahoe Trailer Reverse Light
If you have the factory trailer plug the centre pin should have a light green wire on it which is connected to a 10 amp fuse (trailer b/u lts) in the upper left corner of the fuse center under the hood. If the 25 amp b/u lp fuse is ok and the 10 amp fuse is ok you should have 12v at the centre pin when the transmission is in reverse. Hope this helps some.
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