View Full Version : Hayes trailer brake controller
mrsops
12-14-2012, 08:26 PM
Has anyone ever came across the letters OC flashing on there brake controller when steping on the brakes with the trailer connected?? I used my new towmaster trailer the other day and the controller says p when im driving then when i apply brakes it works just fine...
My interstate trailer is flashing OC when my trailer is connected. So i know it cant be the truck thats the problem, What the hell is going on??
tailboardtech
12-14-2012, 09:02 PM
OC means open connection so it could be anything from the brakes need replaced on the trailer to a broken wire somewhere. The P just means you have Power to the controller
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mrsops
12-14-2012, 09:04 PM
It has to be a wire because this trailer is only a year old!! I looked all over and didnt see anything broke maybe i missed something
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bobcatoh
12-14-2012, 09:42 PM
If the magnets have enough wear on them, the internal coil shorts out to the brake drum. It will give the oc message.
I always change them when new pads are installed.
In fact I just install the whole backing plate assembly.
The best thing to do is switch them out to electric over hydraulic disc breaks.
That's what I have done on my trailers.
mrsops
12-14-2012, 09:50 PM
If the magnets have enough wear on them, the internal coil shorts out to the brake drum. It will give the oc message.
I always change them when new pads are installed.
In fact I just install the whole backing plate assembly.
The best thing to do is switch them out to electric over hydraulic disc breaks.
That's what I have done on my trailers.
I can't see the magnets being worn out I don't use this trailer much maybe once a week if that..
mrsops
12-15-2012, 12:05 PM
Very strange the trailer is being used today and the oc hasnt come up
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Make sure that the plug is seated solidly in the receptical. Sometimes I get the same thing if its not seated fully.
mrsops
12-15-2012, 02:38 PM
Im thinking thats what it has to be
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