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cannesdo's avatar
cannesdo
Explorer
Feb 17, 2016

Testing trailer brake controller....

Been working on this for days. I'm about ready to start screaming. (FYI, I am not in a good mood and any trolls looking to unload shaming or sarcasm or just generally embark on some kind of self-serving ego trip will be blocked immediately.)

The fuses on the multi-meter keep blowing. I have a section of exposed metal near the door-frame of the truck that I'm using for a ground. I have tried setting the meter on 200mA and on DC10A Fuse blows every time. Read something that said this is how you measure the amperes and if it's low or higher than what's on the chart that tells you where the problems is. I touch the black probe to the exposed metal and the red probe to the blue wire coming out from behind the controller. Once they're both touching I step on the brake. The light turns from green to red. The meter shows some numbers that jump all over for a second then the fuse blows. I do this with the 7-pin connected and the key on.

What am I doing wrong?

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