Diesel Forum - TheDieselStop.com - View Single Post - Trailer wiring extension into bed acting funny!
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post #2 of (permalink) Old 07-17-2017, 06:30 PM
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Join Date: Apr 1999
Location: Justin,Texas, Republic of TEXAS (USA)
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He needs to very carefully inspect for any of the wires having touched inside taped or covered harness with the top side plug not connected. Then try again once that plug is in place. The issue may be in the top side plug. The computer knows only continuity to a trailer or a short in the wires. There is no recognition of wiring to be done or detected. I have installed several of those Curt harnesses and had no issues. I have had the end plug where trailer plug inserts have bent pins. He needs to look in the back of that new plug to see if there is anything wrong there. If he used a plug up top where he cut and stripped and then set screw secured wires into a plug the same thing goes as far as the end plug having issues that can make the lighting and electric brake circuit monitoring go nuts.

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