Red Light of Hayes Syncronizer Comes on When Applying Brakes with No Trailer Connected

Question

Question:

Should red light on hayes controller come on when braking , even though trailer is disconnected?

asked by: Darrel

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Expert Reply:

Yes, the red light on the Hayes Syncronizer Trailer Brake Controller # HA81725 will come on whenever you apply your tow vehicle's brakes, even when no trailer is connected. However, no power is used when there isn't a trailer detected.

expert reply by: Charles S

0

Answer 1

All you need to install the Hayes Syncronizer part #HA81725 in your 2017 Ford F-150 is the custom install harness part #HA81794-HBC which plugs in under the truck dash and you'd be set.

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Answer 2

Due to the frame design of your 1987 Ford F-150 all hitch fits would require frame drilling since there aren't holes present on the frame. We do have great 6k rated hitches that fit your truck like the #41004 though. This fits whether you…

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Answer 3

I went out to measure both Draw-Tite Trailer Hitches, #41904 and #41004. They will not use the same mounting locations. On #41904, the center to center distance between the two closest bolt holes is 4-3/4 inches. Between the center bolt hole and…

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Answer 4

If your 1993 Ford F-350 has a factory 7-way installed you could use an under-dash install harness like the part #C51312 to install a controller like the Curt Discovery part #C51120. The harness would be under the dash taped to another harness near…

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Answer 5

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 6

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 7

The brake controller connector is located behind a panel just to the left of the glove compartment, as shown in the provided photo. The wiring harness adapter used will depend on the brake controller you end up using. I see that you've looked at…

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Answer 8

Your 2018 Ford F-150 without the tow package and 7-way does have brake controller wiring currently so once you have the 7-way part #C56413 installed you'd be able to easily install a brake controller using the truck's factory wiring. The P3…

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Answer 9

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 10

There is only one difference between the Curt Trailer Hitch Receiver #C13176 and etrailer Trailer Hitch Receiver #e98909 that fit your 2020 Chevrolet Colorado, which is the finish. The Curt trailer hitch has a glossy black finish while the etrailer…

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Answer 11

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Red Light of Hayes Syncronizer Comes on When Applying Brakes with No Trailer Connected

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