Should Brake Controller Draw Power All The Time

Question

Question:

dexter e/h brake controller In the manual I can get power from the tow vehicle or on board batteries. Does having power to the controller all the time effect the controller? Im just doing the wiring in the trailer and the tow vehicle power also charges the batteries. System is looking great,have the dexter dx-2 on the way. thanks

asked by: Dan S

1

Helpful Expert Reply:

You won't have any problem with power going to the brake controller all the time. This lets the brake controller keep all of its settings and not lose them every time the vehicle is turned off.

Brake controllers are designed to enter a sleep mode after a period of time when there is no activity. An idle controller draws very little current and will not drain the vehicle battery.

expert reply by: Jeffrey L

1

Answer 1

Brake controllers such as #C74VV will have constant power once installed. They need to have constant power otherwise they would reset every time you turned off the vehicle. Brake controllers have what is basically a sleep mode. After a certain amount…

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Answer 2

No you should not have constant power on the brake output pin, the blue wire should only have power with the brake pedal depressed in the vehicle or the brake controller manual override is activated. If the blue wire has a constant 12V then it is an…

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Answer 3

On the Tekonsha Envoy and all brake controllers the four wire colors will be, white is ground, black is 12 volt power, blue goes out to the trailer connector, and red is in from the stop light circuit on the brake switch. I am including a link to a…

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Answer 4

Both the #PK54520 Straight Mount and #9506P Perpendicular Mount Pollak 20 amp circuit breaker are 11/16" long. They have a distance of 1-9/16"center to center for the mounting holes, so as long as you have that amount of space you would be…

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Answer 5

On some vehicles, the key has to be on for voltage to go back to the trailer connector. On others, it does not. An electric brake controller will always send back some minimal voltage to the trailer connector. This is how it senses if there is a…

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Answer 6

The only pin that should be continuously showing 12V power on the 7-Way connector on your vehicle is the 12V power circuit which is normally the black wire but not always. In 7-way wiring the 12V auxiliary power feed is carried on the contact at the…

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Answer 7

There are a number of reasons why the brakes on your trailer may not be working. Lets start with the easiest things to check. First, check the vehicle and trailer connectors for corrosion. This can cause a short inside the connector and the brake…

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Answer 8

First, put the magnet ground wires nearby the magnets on the trailer frame. Running them far away makes it harder for the system to complete the circuit. You mentioned that power is getting to the magnets but how much power? TO determine that you can…

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Answer 9

For the 2012 Pathfinders the relays are located under the hood. There should be a small black box, take the lid off of the box and there should be a legend that will tell you where each of the relays goes. See attached picture.

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Answer 10

When trailer drum brakes are activated you should be able to hear a humming sound. I am not quite sure I would describe it as musical, but it sounds like they are functioning on your trailer. Have you tried testing the brakes to see if they function…

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Answer 11

The first step that you will want to take is to jack the trailer up on properly rated jack stands. Make sure the trailer is suspended securely before replacing the brakes. Once you have your new electric brakes installed and the hub and drum mounted,…

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Answer 12

Load range D has a capacity of 1,220 lbs at 65 psi, whereas load range E has a capacity of 1,520 lbs at 80 psi. Basically the only difference between the two is the weight capacity. With trailer tires you always want to have them inflated to their…

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Should Brake Controller Draw Power All The Time

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