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path1's avatar
path1
Explorer
Jun 11, 2016

How many amps at controller and brakes magnets?

Trailer brakes are getting weak. I already pulled the brake drums and don't see any grease on them. I adjusted brakes shoes and no improvement to stopping. Don't know how old brake controller is. But it has gone from 84 Ford to 01 Dodge. Maybe controller is getting shot or maybe I've got a elec connection problem? But I don't know what a good controller should put out.

As a start to trouble shooting I'm thinking about measuring amps before any elec connections are made to trailer.

1. How many amps should a controller put out before any elec connections?

2. How many amps should be seeing at brake magnets?

Thanks

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