Does Dexter Electric Over Hydraulic Actuator Need 12 Volt Accessory Circuit Complete on 7-Way

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Question:

Hi , I have the E/H dexter 1600 psi installed and P2 all wired from wires under dash. Power wire installed on stud on front of box fuse. Electric over hyd. mode enabled in controller. I ear a clicfoot when I hook the 7 wires plug and thats it! n.C message is the only thing I can get out of my installation .... Ifoot tried with existing gmc controller unplugged and no difference . My lights and back up center pin are not connected yet would this be the cause for non sensing the dexter unit ? Ive also conducted full test of the unit with a separate battery and it is fine. Brakes were bled that way. Please help ??

asked by: Alex

0

Expert Reply:

You have to have the 12 volt power circuit complete on your truck's 7-way for the Dexter Actuator like part # K71-651 to power on. If you check out the diagram I attached you can see that the actuator needs that circuit to power on.

expert reply by: Jameson C

0

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Answer 1

It sounds like the brake controller might need to be reset or the wiring from the vehicle side to the breakaway system needs to be examined. Try adjusting the power output of the controller. If that does not work, you can test the controller itself…

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Answer 2

We've found that typically when the problem you have arises the issue is a blown third brake light fuse as this is same circuit as what activates brake controller with brake pedal. So I would check and see if all of your brake lights come on when…

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Answer 3

I spoke with my contact at Dexter and there is a way to troubleshoot your actuator. If you use a 12 volt battery and connect just the white wire from the actuator to the negative post and then connect the black wire to the positive side of the…

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Answer 4

The newer factory brake controllers, like on your 2022 Chevy Silverado, are generally fine with an EOH actuator like the Dexter DX Series Electric Over Hydraulic Brake Actuator #K71-651. But there are times when there are issues which is why I…

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Answer 5

First thing you will need to do is check that all of the wiring of the actuator and your brake controller are correct. I attached a couple diagrams that should be helpful I spoke with my contact at Dexter and there is a way to troubleshoot your…

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Answer 6

The power for an electric over hydraulic actuator will need to pull power from an on-board battery. It should not pull power from the tow vehicle's battery via the trailer connector. That said, the trailer connector will need to have multiple…

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Answer 7

The pump should come on when you hit the brakes with your Dexter EOH system. I hope you have the Dexter #K71-651 for disc brakes versus the #K71-650 you asked from which will not work with disc brakes because it won't provide enough pressure. If…

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Answer 8

Since the factory brake controller on your 2014 Ram 3500 has an electric over hydraulic mode, it should work just fine with the Dexter actuator. But since it isn't there are some things you can try. First, check to see if you have to have the…

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Answer 9

You will want to start by following the troubleshooting tips in the manual for the electric over hydraulic actuator, #K71-651. I have outlined them here for you: 1. Verify that the trailer and tow vehicle are wired according to the electrical…

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Answer 10

If your trailer has 7k rated Lippert Axles the Kodiak Disc Brake Kit #K2HR758D will fit and work well. Then a 16 inch trailer wheel and tire like the Contender ST235/80R16 part #A16R80GWS could fit as it has the correct 8 lug bolt pattern. We…

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Answer 11

Assuming you have the factory brake controller on your 2020 Ram 3500 it is likely that you will need the #HBA-CAM for your HydraStar Electric Over Hydraulic Actuator #HBA16 to function properly. I reached out to Hydrastar and they are not 100% sure,…

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Answer 12

I reached out to my contact at Dexter and she said there are a couple of tests you can run on the Dexter DX Electric Over Hydraulic Brake Actuator #K71-651 to see if the actuator itself might be bad. The first is to take a standard 12V battery and…

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Does Dexter Electric Over Hydraulic Actuator Need 12 Volt Accessory Circuit Complete on 7-Way

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