Installing a Trailer Wiring Harness on a 2012 Audi Q5

Question

Question:

I splice the brown and red wire together?

asked by: Josh C

1

Helpful Expert Reply:

The brake lights and tail lights should be on the same wire on your 2012 Audi Q5 and the turn signals will have their own wires. So when installing wiring harness # C59236 follow the PWM-ST instructions.

For this installation the harness green wire splices to the vehicle right turn signal wire. Yellow is left turn signal wire. Red splices to the combined brake/tail light wire on the vehicle. Brown you will ground with the white wire.

expert reply by: Michael H

1

Answer 1

On the CURT Adapter 4 Pole to 7 Pole and 4 Pole w/Test Lamps, #C57674, the test light codes are as follows: 12V = 12 volt hot lead BK = output from brake controller (if no brake controller is installed, this light will not light up) BU = reverse…

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Answer 2

The stabilization strap in question is #18050. I have included a helpful link to another question and answer that contains a video that shows how the stabilization strap should be installed. Only the Curt hitch has this requirement, but it is a good…

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Answer 3

The 2012 Audi Q5 actually has the separate turn signals from brake lights and the #119250KIT would need to be wired as the 3 wire system. Yellow to vehicle Left Turn wire, Green to vehicle Right turn wire, Brown to vehicle Tail wire & Red to…

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Answer 4

We have universal trailer wiring harnesses that fit your 2020 Mercedes GLC 300 with the Tekonsha part #119147KIT. This ties into the taillight wiring of your vehicle with included quick splice connectors.

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Answer 5

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 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

Hey Curtis! Yes, the etrailer Trailer Hitch Receiver #e98845 comes with the fishwire/bolt leader. All of the hardware pictured below, including the fishwire, will come with the trailer hitch. This is confirmed to fit your 2018 Dodge Journey. Do you…

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Answer 8

Hey Blaise, with the Curt hitch #C35MJ installed on your 2025 Crown Signia it doesn't have a 4-way bracket built in like you noticed but the Curt kit part #C59236 would actually get stored in the rear cargo area of your vehicle when not in use so…

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Answer 9

Hey Tim, The ZCI Circuit Protected Vehicle Wiring Harness #119250KIT is compatible with LED lights and has been used as a go to for years for people who have LED trailer lights. The light function is supposed send a tiny bit of voltage from the…

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Answer 10

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 11

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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Installing a Trailer Wiring Harness on a 2012 Audi Q5

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