Does Blue Wire on Tekonsha 7-Way Harness Need to be Run for Curt Echo Brake Controller

Question

Question:

I have this harness installed and am going to use the Curt Echo Mobile controller. Question is, do i need to hook the blue wire up to anything or can it just be left disconnected under the hood?

asked by: Stephen M

1

Helpful Expert Reply:

The blue wire on the Tekonsha OEM Vehicle Wiring Harness # 22121 is for electric brake output to the 7-Way connector and since the Curt Echo # C51180 does not need this pin to be active on a 7-Way it can indeed just be tied off.

The Curt Echo only needs the 12V power circuit (along with the basic trailer light signals) to be active on the 7-Way which as you are finding out allows for a much easier install process. I have attached a couple videos that you can take a look at as well.

expert reply by: Chris R

1

Answer 1

The Tekonsha OEM Vehicle Wiring Harness #22121 that you referenced includes all the wiring and parts necessary to install a fully functional 7-Way connector and trailer brake controller. The included brake controller harness is compatible with and…

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Answer 2

To install a 7-way trailer connector on your van, you'd first install a functional 4-pole connector, like part #C56331. Once that's installed, you can install a 7-way by plugging the #37185 adapter into the 4-pole. Once the white wire is…

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Answer 3

The great thing about the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter part #22121 for the 2015 Chrysler Town and Country is it does not require any additional wiring to use a brake controller. It is compatible with…

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Answer 4

The Tekonsha 7-way that fits your 2019 Dodge Grand Caravan #22121 comes with the missing brake controller wiring that you mentioned not finding on your 2019 Dodge Grand Caravan. So you'd wire the PowerTrac part #39523 directly to that and…

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Answer 5

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 6

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 7

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 8

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 9

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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Answer 10

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 11

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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Answer 12

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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