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Electrical 3rd Gen Dodge Ram Electrical Problems and Questions.


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  #1  
Old 06-17-2013, 03:37 PM
pamegacab pamegacab is offline
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Default Trailer brake issue.

I have an 07 mega cab hemi and have used the 7 way plug quite a bit in the past few years with no problem. However the last time I took the camper out, the trailer brakes would "pulse" on and off quick a few times while braking. The truck brakes would work normally, but the trailer would almost lock the tires for a split second while under normal braking. I replaced the brake controller with a different model and still have the same issue. The LED light will go orange for how I have it set while braking, but something in the truck causes a short and the LED will flash red, to indicate full brake power. I have checked the visible wiring to make sure this wasn't a short between the brake wire and the brake light wire. I am thinking its the brake controller within the truck but have no idea where to start looking.

Thanks for the help.
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Old 06-29-2013, 06:59 PM
jerrykatz jerrykatz is offline
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Default

I have had similar issues in the past, but it is because of the adaptors that I have. I have one that works properly and another that I thought was the same but is wired differently. Even though it looks the exact same to the eye. I guess that there are several different wiring schematics on different trailers and the adaptor plug has to match. For me it was a simple matter of picking up the wrong one out of my box to use. Good luck.
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Old 07-30-2013, 05:55 PM
EKThumper EKThumper is offline
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Default Pulsing trailer brakes

Check the trailer side plug. Had same problem and drove me nuts. I happened to check the trailer plug and found a broken wire connector inside the plug. The broken piece would rattle around enough to make intermittent contact with the brake terminal. That caused full brakes. I removed the piece and every thing worked fine. I replaced the plug when I got home.
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