Forum Discussion
otrfun
Jul 06, 2018Explorer II
If I had braking problems (regardless whether I was using an OEM ITBC or aftermarket brake controller), I'd take the 5 minutes to check the voltage output of the brake controller first---preferably at each brake assembly. I'd do that before spending a few hours jacking up axles and pulling tires/wheels/brake drums. A perfectly operating trailer brake will not brake properly with insufficient voltage. With the brake controller adjusted to max. I should read approx. 12 volts.
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