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Ground wire??? Please help

10229 Views 26 Replies 13 Participants Last post by  kevlav09
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Can anyone confirm this is a ground wire and/or what it goes to? Where was it originally connected? I was just wiping some things down around the master cylinder and then felt the loose cable. Pulled it out and it looked like it belonged on the fuse block because it won’t really reach much else. It wasn’t attached to anything and I don’t think it’s been connected for a while, maybe the whole time I’ve had this truck. Everything seems to be functional so I’m lost. Please help.


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The trailer wire is very short, it'll only reach about as far as where it needs to attach to the fuse box post. Red ~14AWG, black heatshrink at the crimp. Single skinny wire with no split loom or anything. If it's not in use there's a little tab clip it slots into on the side of the split loom retainer for the battery cable bundle.
Trailer wire won't reach anywhere near the brake booster as it's only about 5" long where it comes out of the harness.

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