HELP ... installing electronic brake controller


Old 06-17-07, 12:37 PM
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HELP ... installing electronic brake controller

HELP.... I am attempting to install an electronic brake controller for the electric brakes on my trailer. I can't find the "cold side of vehicle’s brake switch". The vehicle is a 1999 GMC Jimmy. Any one know exactly which wire. I tried to measure with a voltmeter but no luck. Thanks
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Old 06-17-07, 03:35 PM
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Not sure what the instructions say, but the 'cold' side usually refers to ground, and any metal part of the body or frame will give you that.
Old 06-17-07, 03:37 PM
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brae controller

vehicle has to be pre wired for electric brake controller install, either you can do it or the guys at uhaul will take care of it for a fee, to include a 7 way pin connector next to hitch receiver, with or without trailer batt feed wire
Old 06-18-07, 11:24 AM
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check the wires at the brake switch with a test lamp one will be live all the time (hot) the other will only be live when peddel is depresed (cold)

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