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Troubleshooting Brake Controller that Always has Voltage on Brake Output Circuit  

Question:

I have a 1996 Chevy K-2500 and I have installed a Reese Brakeman Brake controller but the blue wire stays live all the time . I have checked my wiring . White ground. Black power . Blue trailer . Red brake light . activated by brake pedal only Is the controller junk ??

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Expert Reply:

If your wiring is correct then yes your brake controller probably got shorted out. The first thing you should test is the red wire though. You need to make sure this circuit only sees voltage when the brakes are applied and none when they are not. If there is constantly voltage on this circuit then you know the problem is that you have the wrong wire for the brake switch.

If the wiring is good then you definitely know the controller is bad.

I attached an FAQ on troubleshooting brake controller installs for you to check out also.

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Jameson C

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