What does ".C" Mean on Trailer Brake Controller Display

Question

Question:

OK so Im getting .c on my tease when plugged in I can for life me figure it out are my brakes still working

asked by: Eric

0

Expert Reply:

The ".c" display on your Pro Series Pilot Brake Controller # 80550 is simply an indication that the unit has power and is connected to a trailer load. If you are hooked up to your trailer, this is exactly what you want to see on the controller screen and means that everything is working properly.

I recommend applying the manual slide on the controller to see if the display changes to a number, indicating power being sent back to the trailer brakes.

You can also take your trailer to an empty parking lot just to test the brakes to ensure everything is working as it should. I have included the instruction details on this controller for you to look through.

expert reply by: Chris R

0

Dana B.

3/2/2025

Hi Chris, what if you’re getting this and your trailer isn’t hooked up?

Reply

Chris R.

3/3/2025

@DanaB Good question! My first thought is that pins on your vehicle's 7-Way might just need to be cleaned out. It's possible some corrosion has built up inside and it's causing a short within the harness' wiring.

Reply

Answer 1

When initially setting the power on your Prodigy P3 Brake Controller #90195 you will follow the process you stated. I've attached these instructions to further assist. You will get up to 25 mph and release the gas pedal and then fully engage the…

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Answer 2

The mounting pin holes on the Reese Select Plus Fifth Wheel Hitch, #RP30928, measure front to back 21-15/16 inches center to center and side to side 20-5/8 inches center to center. This hitch is designed to fit all standard base rails. If you…

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Answer 3

The problem might be that you have an entry-level 5th wheel hitch that has minimal features that help to cushion that chucking that you're feeling. If it's an older Reese 16K with a slide bar jaw like the Pro Series PS30093 then it makes…

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Answer 4

The 1/2" pin is pretty standard with fifth wheel setups because they have to fit through the rails in the bed. All of the fifth wheel pins we carry are 1/2" options. If you are just concerned about rattle I recommend to use Curt Fifth Wheel…

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Answer 5

With the Pilot 2-6 Brake Electronic Brake Controller #80550 showing .c it recognizes that it is connected to a trailer. It sounds like you are not getting power to the red wire on the brake controller from the brake switch on your 2007 GMC Sierra. A…

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Answer 6

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 7

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 8

Actually, the P3 now has the upgraded axis accelerometer like the P2. The Tekonsha P3 Trailer Brake Controller #90195, will work with both electric over hydraulic brakes on the trailer as well as electric brakes. It has a menu option on the display…

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Answer 9

The best brake controller option to go with is one that activates the brakes proportionally instead of time delayed. A proportional brake controller will activate the trailer brakes at the same time and with the same intensity as the tow vehicle…

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Answer 10

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 11

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

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Answer 12

If your vehicle has a factory brake controller plug, you can simply use the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers – Ford, Item #3034-P, which will connect to the vehicle plug and the brake controller. On the new E-450…

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What does ".C" Mean on Trailer Brake Controller Display

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