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| Here's the blue wire under the hood. Looked at my dad's 04 Silverado with a tow package and it had another blue wire connected to it, that headed down the frame to the back. Fairly certain I just need to run a wire to the back.
Another question, how much voltage should be on the blue wire when not braking? We put the controller on Dad's pickup and it also had 12 volts out the back, but the trailer brakes didn't lock up when we hooked it up.
 (15524194024562342100249067681998 (full).jpg)
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 15524194024562342100249067681998 (full).jpg (241KB - 179 downloads)
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brake controller install 01 Chevy Silverado
