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  1. No power at trailer brake controller

    Towing
    I’m stumped and would love some help with my 2012 Frontier SV 4L. ——— Problem: Black wire (12V) going to my Prodigy P2 brake controller is 0V so my controller not turning on. ——— (1) All other terminals on my 7-plug at hitch give proper voltages. Only the variable brake terminal is 0V (due to...
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