Diagnosing a Brake Controller Problem

Diagnosing a Brake Controller Problem, http://www.etrailer.com/Brake-Controller/Draw-Tite/5500.html

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Alright, today on this 2009 Ford F-150 we are going to diagnose a brake controller problem. Now we can use these steps on any brake controller that is on the market to verify if it is working or not. Now our brake controller is already telling us that it has an error message. It is flashing an Er on top. Usually it means an internal problem. We tested our trailer so we know it is good. So, it is not that. So first off we will make sure we have a constant 12 volt power supply. We will check the black wire first. OK, we are good there. Now we will try our red wire for our brake signal. OK, that is good there. Now we will try our blue wire and that will be our output. So we should have output on this wire whenever we hit the foot brake or the manual override. OK, we get nothing on the foot brake and nothing on the manual override. So definitely the error is internal and this brake controller does have to be replaced..

Diagnosing a Brake Controller Problem

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Diagnosing a Brake Controller Problem, Autos, how to use ford f150 trailer brake controller,