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Old 04-11-2016, 10:58 PM   #1
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No trailer brakes

We picked up our new '15 GK last Tuesday in Memphis. Drove south to Oak Mountain State Park (beautiful! ) in Alabama. Brakes appeared to work okay. It has disk brakes with a Cargo HydraStar actuator. Today, we broke camp and no brakes, even pulling the emergency brake away cable. Anyone have a similar experience?
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Old 04-11-2016, 11:11 PM   #2
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Check the fuse on the truck fuse box for trailer brakes, don't what truck, but on GM it's under the hood in a large,black box on drivers side. If you would post truck & trailer in the signature it would be helpful.
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Old 04-12-2016, 12:07 AM   #3
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Mine didn't work when we tried to pull away from the Dealer at closing. They had to replace the whole actuator. Something about the wiring was messed up between the actuator and the additional module and it burned out the actuator. They actually think the transport guy messed with it to get his to work before it ever got there, and he probably drove it with no brakes.

Anyway, it did work when the emergency cable switch was pulled, just not with the truck so probably a different issue.
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Old 04-12-2016, 12:16 AM   #4
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Quote:
Originally Posted by travelin' texans View Post
Check the fuse on the truck fuse box for trailer brakes, don't what truck, but on GM it's under the hood in a large,black box on drivers side. If you would post truck & trailer in the signature it would be helpful.
Truck is GMC 3500 Diesel-dually. Checked that fuse...it was ok.
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Old 04-12-2016, 12:46 AM   #5
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Quote:
Originally Posted by RV4us2 View Post
Truck is GMC 3500 Diesel-dually. Checked that fuse...it was ok.
Check the Cargo actuator. I have a 2016 GMC and had same problem. Found out the actuator that was on my Redwood was not correct one to be compatible with my truck integrated brake control.
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Old 04-12-2016, 01:01 AM   #6
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If the brakes aren't working with the "Break-a-way Switch" it sounds like you've lost +12 Volts to the Pump, or the Pump hs died.
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Old 04-12-2016, 04:08 AM   #7
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That was my next thought, no power.
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Old 04-12-2016, 05:52 AM   #8
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Pulling the break away switch should activate the pump using house battery power. If the pump does not run and the battery is charged it should be the pump.

Quit looking at the truck until the trailer operates the pump via break away switch.
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Old 04-12-2016, 06:56 PM   #9
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Thanks all. The Cargo actuator is working, but weak. We got to the dealer in Memphis, and they are replacing the actuator.
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Old 04-12-2016, 10:21 PM   #10
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My rookie year, I had no brakes when I pulled out of the dealer - but since the pump was running, I didn't even notice until a few hundred miles down the highway. On mine, the pump would run but not output any pressure to the disk brakes. RW had Carlyle ship me one overnight since no dealers atound. I had to change it and bleed the system so I could get to the rally that August.
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