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  #1  
Old 05-22-2013, 07:29 PM
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electric trailor plug prob.

so i went to hook to my dump trailer today for the first time in god knows. and no lights or brakes worked. hooked another truck up to it worked perfect. so i figured must be my connection had a little corrosion. installed a new one today no luck. if at all worse. i only get parking lights. no signals no breaks. just parking.... could it be the 7pin harness which goes to the square looking connector on the back. or is there a fuse? its a 2003 6.0
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Old 05-22-2013, 07:47 PM
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Check the #6 fuse, should be 20A.
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Old 05-22-2013, 07:54 PM
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Quote:
Originally Posted by jimmyv13 View Post
Check the #6 fuse, should be 20A.
under dash or hood?
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Old 05-22-2013, 07:59 PM
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Under the dash.
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Old 05-23-2013, 05:57 PM
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Under the dash.
well ugh the fuse is good i tested it.
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Old 05-24-2013, 06:19 PM
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any one? i need help.
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Old 05-26-2013, 05:07 PM
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Have you verified no signals at both plugs, the 4 flat and 7 round? If so, then work your way back to the fuse panel from the plug wiring. There's got to be a break in the wire somewhere. Seems odd that you lost BOTH sides at the same time...
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Old 05-26-2013, 05:34 PM
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There are various fuses. Check em all.
If good, check power at the first connection you can, and keep working through all them.
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Old 05-26-2013, 08:24 PM
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A quick check is to take a volt meter to the prongs in the connector. The one at about 2 o'clock should be your 12v, and the one at about 7 o'clock should be ground.

Here's a diagram to help you out. The right side will be the same as your outlet.
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Old 05-27-2013, 05:36 PM
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turns out the small harness from the square in the back to the actual 7pin had been crushed? idk how it was like that. it was corroded also so i spliced the wires and re did the connections in the small harness but still no go.
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