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Bad Brake Controller or wiring issue?

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Old Jul 9, 2011 | 08:49 PM
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Bad Brake Controller or wiring issue?

Just returned home from vacation. On the way home the trailer brakes on my TT quit working. They worked on the way, but not home. I have a cheaper controller (not sure of brand) that has worked well for me for four years. When backing the TT into the driveway, I noticed the left signal and brake light on th TT also did not work. I tried un-plugging and re-plugging the connector from TT to truck and double checked the connection, all seemed OK, but left signal, brake light and trailer brakes still didn't operate. I hooked up to my brother's 05 F-250 with the factory controller and everything worked. So then I tried my X again, and all the lights now work, but the trailer brakes still don't. Could it be the controller is bad and the lights were just a fluke? I have heard of some guys spraying some sort of spray into the connector to help with corrosion. Is this possible, and if so, what do I use? Sorry for the long post, I'm just trying to figure this out! Thanks in advance!
 
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Old Jul 9, 2011 | 09:19 PM
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From: Bristol, TN.
Originally Posted by fordboy67
Just returned home from vacation. On the way home the trailer brakes on my TT quit working. They worked on the way, but not home. I have a cheaper controller (not sure of brand) that has worked well for me for four years. When backing the TT into the driveway, I noticed the left signal and brake light on th TT also did not work. I tried un-plugging and re-plugging the connector from TT to truck and double checked the connection, all seemed OK, but left signal, brake light and trailer brakes still didn't operate. I hooked up to my brother's 05 F-250 with the factory controller and everything worked. So then I tried my X again, and all the lights now work, but the trailer brakes still don't. Could it be the controller is bad and the lights were just a fluke? I have heard of some guys spraying some sort of spray into the connector to help with corrosion. Is this possible, and if so, what do I use? Sorry for the long post, I'm just trying to figure this out! Thanks in advance!
One of the best investments folks who tow can make is to invest in a simple seven pin tester from somewhere like Northern Tool. Plug it into the seven pin on your vehicle and watch the lights on the tester while someone cycles through the lights, brakes, etc. It tell you quickly and easily whether you hae power on all the terminals of your seven pin. Have someone operate your controller and you will have your answer.

As I recall less than $25.00. Hope this helps,

Steve
 
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Old Jul 10, 2011 | 02:48 PM
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Took apart all the connections on trailer hitch and cleaned them up with electrical contact cleaner, let them dry out really well, reconnected......Everything works! Hopefully that's all it needed, but I'm going to keep an eye on it. Took a little longer to resolve this as I have been busy replacing the awning that got blown off July 4th night, and fixing my front picture window on the house the kid put a lacrosse ball through
 
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Old Jul 10, 2011 | 03:03 PM
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From: Bristol, TN.
Originally Posted by fordboy67
Took apart all the connections on trailer hitch and cleaned them up with electrical contact cleaner, let them dry out really well, reconnected......Everything works! Hopefully that's all it needed, but I'm going to keep an eye on it. Took a little longer to resolve this as I have been busy replacing the awning that got blown off July 4th night, and fixing my front picture window on the house the kid put a lacrosse ball through
Good job! I have seen a great many brake controllers sacraficed unnecessarily. They are incredibly reliable given the manufacturers' liability is so great. I normally expect them last of all components. Connections? About 95% of the time.

Man, get the kids a wiffle ball!

Steve
 
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Old Jul 10, 2011 | 08:03 PM
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get some dielectric grease. coat your trailer female end and also the male portionas well. will help performance and prevent corrosion. available at auto parts store, not walmart tho.
 
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Old Jul 11, 2011 | 06:30 AM
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Originally Posted by 2003u45
get some dielectric grease. coat your trailer female end and also the male portionas well. will help performance and prevent corrosion. available at auto parts store, not walmart tho.
That's next on my list, I just wanted to make sure I got the problem fixed first. Plan on getting some on the way home from work today
 
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