tailight harness
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Freshman User
Joined: Jul 2010
Posts: 33
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From: Carlisle, Pa
tailight harness
so i finally finished installing the spectra fuel tank. I got the bed back on, connected the wiring harnesses, only headlights and reverse lights work. (no turn or brake) the harnesses are really self explanatorry (so it would seem anyway) there's a 3 pin, a 4 pin, then a completely unique harness. It all worked when I took the bed off, no fuses blown. any suggestions?
Thread Starter
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Freshman User
Joined: Jul 2010
Posts: 33
Likes: 0
From: Carlisle, Pa
front lights work fine, i just checked the wires again, the ground wire had me thinking there was another harness possibly folded back, but that's not the case. i sthere something to coat or lubricate those harnesses to ensure good contact?
Lead Driver
Joined: Mar 2006
Posts: 5,109
Likes: 1,538
From: western SD
If the 3 pin, and the 4 pin connectors are round, you have wiring for trailer tow package. The truck tail and brake harness that goes from truck frame to box lights should be a square plug.
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