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Dillmation's avatar
Dillmation
Explorer
May 19, 2013

Can't make any Adjustments on my trailer brakes

I have a 99 gmc sierra, new style, and recently replaced the 6-pin trailer connector to the 7-blade connector, my mechanic hooked this all up and now i dont have any adjustment for the brakes, the bra...
donn0128's avatar
donn0128
Explorer II
May 19, 2013
Download the bargman wiring schematic from the internet and compare it to what your highly skilled mechanic did. If it does not match then yes he is an idiot. Guarantee he wired the brake light switch to the brake terminal on the receptacle.

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