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2003 ford f250 6.0L ground in exterior lamp circuit fuse 17

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Old Mar 5, 2024 | 10:14 PM
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GabeSullivan6.0L's Avatar
GabeSullivan6.0L
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2003 ford f250 6.0L ground in exterior lamp circuit fuse 17

So I’ve been having an odd problem. The truck for a while had no a/c I determined it was the fuse box so I replaced it. Now I have a/c but no running lights at all, I thought that the fuse box I bought was bad but turned out not to be. So I replaced the fuse box back with my old one to just dummy test and my running lights came back! But no a/c again. I’ve unplugged every light on the circuit, unplugged the harness behind the rear bumper everything. I figured out with my power probe that if I give power to pin #7 on the lights switch it blows the fuse, what else should I look at?!
 
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