Question about Cars & Trucks
Need wiring diagram for air braks
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: wiring diagram
Helpful Wiring Information when hard wiring your brake control:
Run two wires to the battery:
White - Ground
Black - Power
Blue - Run to Electric Brakes at the Rear Plug
Red - Run to cold side of brake switch off of the brake pedal (using a test light to find the cold side)
Note: Always wire the red wire to the heaviest gauge wire when testing cold side of brake switch.
You can view more info here. http://store.drawtite.com/brakecontrols.html
Posted on Nov 17, 2008
SOURCE: Wiring harness diagram
Your question is not clear, 2002 trailblazer has a towing harness, in order to find each wire, use a ohmmeter and try out each application.
In case of male harness of a camper you can test it with 12 volts in each wire looking which light is on and if it is different position cut wires and make similar wiring
Posted on Nov 19, 2008
your power starts at the brake light fuse,check with a test light,then proceed to stop light switch on brake pedal under dash,one wire will be hot when when you check it with your test light, the other won't be until you press down the brake pedal then the power flows through to the second wire,if no power to second wire replace switch,if you have power remove tail light bulbs and check for power in side socket.
Posted on Nov 26, 2009
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