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dapperdan's avatar
dapperdan
Explorer
Aug 03, 2013

Brake Controller Question

I have a Braking question for the Gurus on here. About three or four weeks ago I got an "OL" read-out on my Prodigy 2 brake controller, checked online and started checking the "easy" stuff first. My socket in the bed of the truck was a little dirty so I cleaned that up. The plug had a little dirt in it as well so I cleaned that up. Trip back home from that campground and all "seemed" well. Next trip out I got the dreaded "OL" read out again.
Next I checked the wiring on the back of the truck, low and behold I did have three bad connections, although my running lights, signals and brakes lights were all working at this time the pin that supplies constant voltage to the trailer was the worst, in fact it broke apart after "giggling" it a little. Spent the better part of an afternoon redoing the wiring on the back of the truck. Another trip to a campground, thinking I solved my mystery and still getting the "OL" and now and then "SH" read out too!

I tested all the connections at the plug in the bed, all have good power except the brake pin, that one appears to be about half as bright (when tested with a continuity tester) as the rest. Traced and tested the wire all the way back to the cab, still half bright on the tester. Checked the power coming right out of the controller and that appears weak as well. The trailer brakes are pretty weak, I tried dialing up the power to them and even at "11" on the read out they grab "OK" but not like I think they should.

Today I pulled off all the wheels, checked the brake wires on all and repacked the bearings. Brakes look good, wires look good so what's my problem? I'm thinking it's the brake controller at this point, I've checked everything I can think of. What have I missed?

Thanks for your input.

Dan

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