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Discussion Starter #1
I just purchased a 2010 Tundra and wired in the brake controller from my old truck using the wiring harness provided by Toyota. The controller activates the trailer brakes just fine but all of the sudden I'm now blowing the 15amp fuse on the truck's brake lamp circuit. Anyone run into this issue before or have any ideas? :confused:
 

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Discussion Starter #3
No, that's the one wire I left open since my controller does not have illumintation. I can't help thinking my controller or maybe my RV somehow has a short. They're both new so neither seems logical. Thanks for the reply.
 

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Just Call Me Hank
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1,415 Posts
If you soldered wires I believe they are not a color match, seems someone else not to long ago had this issue. I can't say for sure I bought the ready to use mini harness with my Prodigy.
 
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