Does a Power Wire Need to be Run to Battery to Install a Curt Wiring Harness on a 2012 Mazda CX-9

Question

Question:

do I need to run a wire to the battery for the 56016 wiring harness for the Mazada CX9? It thought it was a plug and play system

asked by: Chuck

0

Expert Reply:

Yes, you will need to run the power wire from the Curt Custom Fit Wiring Harness # 56016 to your battery. The connections to your tail light wiring harness are very much plug and play as they will just connect in line with your tail light connectors.

The reason you need to run the power wire to the battery is because the # 56016 uses your tail light circuits as signal wires and actually powers the tail lights of your trailer with the power it draws from the battery of your 2012 Mazda CX-9. This protects the delicate tail light circuitry by not overdrawing it.

I attached the installation instructions for the # 56016 for you to check out also.

I also attached an FAQ article on running the power wire for a trailer wiring harness.

expert reply by: Jameson C

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Answer 1

If you were to run the power wire of the Curt Vehicle Wiring #56016 to anywhere but the positive post of your vehicle battery you would void the warranty of the harness and could potentially damage the wiring of your CX-9 in the event of a short on…

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Answer 2

The Curt T-Connector Vehicle Wiring Harness #56016 that you referenced is intended for the Mazda CX-9 without the factory tow prep package, as you noted. Right now the aftermarket makers of wiring harnesses, like Curt and Tow Ready, do not offer a…

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Answer 3

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 4

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 5

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Answer 6

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 7

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Answer 8

Brake systems are not dependent on the hub bolt pattern. So you can use the Electric Trailer Brake Kit #AKEBRK-7-SA for 12 inch hub/drums or #AKEBRK-35-SA for 10 inch hub/drums. Then use #10-1-1 wire sold by the foot for your brake magnet wiring.…

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Answer 9

Normal operating temperatures for drum brakes range from 150-400 degrees F. During certain stopping conditions the brake heat can exceed 600 degrees. The effectiveness and stopping power of the brakes is significantly reduced at these higher…

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Answer 10

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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Answer 11

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 12

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Does a Power Wire Need to be Run to Battery to Install a Curt Wiring Harness on a 2012 Mazda CX-9

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