What Are Wire Colors On 2004 Chevrolet Silverado For Trailer Wire Harness

Question

Question:

On the truck side which color wires do what?

asked by: Jake

0

Expert Reply:

Manufacturers can change the wire colors at any time, so you want to test the wiring with a circuit tester like part # PTW2993 to make sure you find the right wires when installing wire harness.

We do have a chart that shows what color wires are typically found on a vehicle. For your Silverado Green is used for right turn and brakes, Yellow for left turn and brakes, Brown is for taillights, and Black is for ground.

I have attached a helpful article that explains vehicle and trailer wiring you can check out.

expert reply by: Jeffrey L

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Answer 1

On your 2004 Chevrolet Silverado 2500 the factory wires should be light green, dark green, blue, yellow, red, brown, and black. The functions of those wires should be as follows: light green - reverse lights dark green - right turn/brake blue -…

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Answer 2

Just to make extra sure, the red wire should be directly next to the blue wire on the harness. The black wire should be above (or below depending on how you are holding the connector) the blue wire. And the white wire should be in the opposite corner…

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Answer 3

Most GM trucks use a pretty standard wire color for their tow packages, but I always recommend testing for function, and not just color. If you follow the bundle back there should be more wires than the ones you mentioned, for a total of 8.…

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Answer 4

Thanks for the photo of your trailer connector. I recommend replacing the connector in your vehicle. Since you already have the wires at the bed of your truck, you can use a 7-way blade-style connector, like the Pollak #PK12707, to provide a new…

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Answer 5

When installing a brake controller in a 2004 Chevy Silverado 2500HD with a harness like the Tekonsha part #3015-P there are a few connections under the hood of the truck that need to be made to activate the brake controllers wiring. I attached a help…

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Answer 6

This is a really good question. You are correct, the wire assignments you mention do not correlate with standard trailer wiring. Standard trailer TAILLIGHT wiring colors in the USA are: Brown = running light circuit White = ground Green = right…

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Answer 7

Chevy trucks like your 2004 Silverado 1500 are known to require some additional connections under the hood to make a brake controller fully functional. We have a help article that covers exactly this which I have linked for you. The red wire with the…

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Answer 8

While I don't have a wiring diagram for your vehicle, we do have some experience with wiring your vehicle. These are the color codes that GM typically uses and was verified on a 2007 Chevrolet Silverado with factory wiring. Dark Green - Right…

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Answer 9

In order to determine the correct function of the wires that are included with the Ford Replacement OEM Tow Package Wiring Harness part #118242 you are going to want to plug the harness into the vehicle and have a friend sit in the cab and operate…

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Answer 10

We offer 15" diameter wheels in five different bolt patterns; 4 on 9.44" (uncommon), 5 on 4-1/2" (common), 5 on 4-3/4" (uncommon), 5 on 5" (semi-common), and 6 on 5-1/2" (common). In order to determine which bolt pattern…

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Answer 11

The wheel used on the #AM32395 Karrier 205/75-15 wheel doesn't have the retention clips or nubs stamped into it that would hold a hubcap in place (see photo). I have some options for you though. A conventional steel wheel like what's provided…

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Answer 12

You can hard-wire in a brake controller, and it seems that there are not a lot of the Sprinter 3500 models that are pre-wired, at least from what I've seen in my research. I have not seen any reports that this isn't possible, and we even have…

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What Are Wire Colors On 2004 Chevrolet Silverado For Trailer Wire Harness

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