Coast Resorts Open Roads Forum: Toy Haulers: Another Electric Brake Problem Question???
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 > Another Electric Brake Problem Question???

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Bedlam

PNW

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Posted: 02/27/14 02:16pm Link  |  Quote  |  Print  |  Notify Moderator

Also check your truck fuses to the 7-pin power and brake controller. If the voltage is not there for the feedback loop, it may indicate a trailer fault even with everything alright.


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Hap Hazard

Mammoth Lakes

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Posted: 02/27/14 02:50pm Link  |  Quote  |  Print  |  Notify Moderator

Latest update:
All fuses have been checked and appear OK. Volt meter connected to “Electric Brake” terminal on truck side shows power when brakes applied.

Connecting voltage to the trailer plug using an external battery shows power to the magnets (using Chiefneon’s) compass test. However the compass swing is very slow over a matter of several seconds.

I will remove the wheels and hubs to check this out next. I would think this would show the wiring is working OK but I wonder if the controller is picking up a high resistance signal and indicting a problem.

Thanks everyone.
Hap

nayther

Burbank, CA

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Posted: 02/27/14 05:01pm Link  |  Quote  |  Print  |  Notify Moderator

You could also do a temporary bypass wire Hap. Run a wire from the plug in front to a magnet and check, then start working back toward the front with the wire and see if/where the problem goes away.


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Hap Hazard

Mammoth Lakes

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Posted: 02/27/14 06:46pm Link  |  Quote  |  Print  |  Notify Moderator

DONE!!!!!

Dumb, Dumb, and Dumb again.

Awhile back I had the trailer cable drop down while towing and the road rash scraped bare several wires. Since I was working then I spliced the cable and electrical taped it. This worked pretty well for a couple of years.

It eventually worked the splices loose and I began getting error messages on the dash. Long story short, I had the cable replaced and have had this intermittent problem since.

After all this I find that the negative lead and the electric brake leads were reversed at the trailer plug on the trailer side. Corrected this error and all is well. Dumb, Dumb, Dumb.

Thanks again to everyone for their support and suggestions. I did learn some new tricks and will not forget them. Now off to Las Vegas for Nascar and no fear of our snow and icy covered roads.

Waited all winter for snows that didn’t come and now 4 days before departure comes the biggest storm of the season, figures.

Thanks,
Hap

nayther

Burbank, CA

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Posted: 02/28/14 10:57am Link  |  Quote  |  Print  |  Notify Moderator

be careful coming down the grade Hap. Glad it was really something simple, once found (isn't it always?).

Enjoy Nascar, will be LOTS warmer than home.

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