04 chevy new trailer brakes don't work check power to 7prong plug and its good.

  • Thread starter Thread starter geoffrey b
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geoffrey b

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also pulled safety brake cable? which uses same wiring on trailer and that is good. all lights work. also hooked up another brand new trailer and had the same problem. please help
which uses same wiring on trailer and that is good. all lights work. also hooked up another brand new trailer and had the same problem. i bought two different brand new controllers with no luck. The controller is not even showing a trailer hooked up. And how does the controller know if there is a trailer or not? please help
 
Brake controller bad or not adjusted rite, or trailer brakes out of adjustment. Is the controller getting juice? Check the fuse or the ground. I have mine wired directly to the battery, both pos. and neg.
 
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