Should Brake Output Pin of 7-Way Have Voltage When Brakes are Applied without Trailer

Question

Question:

On a factory installed controller with a seven pin hookup should the trailer brake terminal have12v when the brake is applied without the trailer connected

asked by: Dick

0

Expert Reply:

Yes, if you test your brake controller output pin on your 7-way for voltage with the brakes applied and the gain set to the max you would see a full 12 volts. You should be able to adjust the gain to get varying voltages.

expert reply by: Jameson C

0

Steven

2/2/2025

When I test all of my pins i get 12 volts except on the brake controller output pin. I checked the fuse and it is good. do you have any idea of why i wouldn't get a voltage reading? When connected to my trailer and i squeeze the emergency slide switch all the way without using the brakes the trailer will slow down but not lock up. trying to determine the problem...

Reply

Jameson C.

2/3/2025

@Steven Have you tried cleaning the pins of the 7-way? Sounds like maybe there's some corrosion that needs to be cleaned off.

Reply

Answer 1

Essentially the adapter part #HBA-CAM is designed to simulate amperage draw of a brake magnet by use of resistance. So you can use an multimeter like #PTW1714 set to read amperage to probe each wire of the adapter. As long as you are seeing over 7.5…

view full answer...

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…

view full answer...

Answer 3

Thank you very much for your purchase directly from etrailer.com of your Reese brake controller. I'm not certain what the issue is but can offer you some troubleshooting steps. First, You will need to find out if the issue is on the brake…

view full answer...

Answer 4

You will need to hardwire the brake controller to your 2008 Dodge 1500. Because the wires have all been cut it would be best to run all new wires so you know it is done correctly. The four wires coming from the brake controller are White for ground.…

view full answer...

Answer 5

There are many things that can affect the voltage on the brake output wire from your brake controller to your trailer brakes such as the power setting on your brake controller, how you are testing the wire and if you are testing it with the brakes or…

view full answer...

Answer 6

The blue wire coming from the back of your Tekonsha Voyager Brake Controller #39510 is for brake output to the 7-Way connector. This wire should only have power with the brake pedal depressed or the manual override activated on the brake controller.…

view full answer...

Answer 7

If the shackles are flipping the wrong direction frequently that typically means the leaf springs are too short, the hanger spacing is too big, or the shackles are too short. Most of the time it's somebody changed leaf springs and just went with…

view full answer...

Answer 8

13 inch trailer wheels are the smallest you can go to fit over a 10 inch hub and drum. The smallest tire size to fit that rim would be a 175/80-13 so for that size on a wheel that would bolt up to your trailer you would want the #TA43RR. Overall…

view full answer...

Answer 9

Yes, the Curt Trailer Hitch item #C15409 will still hang down even if you do not have the factory hitch installed. It looks like all of the aftermarket hitches for the 2012 Ram 2500 have the same profile. The Curt Trailer Hitch item #C15409 is…

view full answer...

Answer 10

All the brake controller needs to sense a trailer connection so that you can test it is a slight amperage draw on the output circuit. For that you can use a circuit tester like the part #PTW2993 with one pin grounded and the other on the output pin.…

view full answer...

Answer 11

Normally a bumper is rated at about 3500 lbs towing capacity. It is usually stamped somewhere on the bumper or possibly on a sticker. A frame mounted hitch is going to have more capacity for towing due to how it is installed. Also, most trailers will…

view full answer...

Answer 12

Between the Curt TruTrack system #C17500 and the Husky Center Line system, #HT32218, the differences are basically cosmetic. There are some slight differences in the design of various components between the systems but they function the same. The…

view full answer...

Should Brake Output Pin of 7-Way Have Voltage When Brakes are Applied without Trailer

Product Page this Question was Asked From

Featured Help Information

Miscellaneous Media

Continue Researching