Posted by Geo-TH,In on August 09, 2021 at 15:14:28 from (184.19.38.228):
In Reply to: Trailer update posted by super99 on August 09, 2021 at 14:09:55:
the brakes worked but locked up. What am I doing wrong? Get a voltmeter out. Is the black wire +12v? If it is your brakes work, +12v on black wire bypassed controller. My electric brakes work on 4 to 5 volts. You apply 12v to brakes for emergency stopping via a break away switch and battery on trailer.
When I worked my brakes I applied 12v form a battery to brake wire and measured 12 amps. That will lock up wheels.
Get your meters out. My brake controller only works when truck is moving and it notices I'm slowing down.
Good luck. The wiring on truck doesn't look factory.
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