Installing 4-Pole Trailer Connector on 2002 Chevy Silverado with No Trailer Connector

Question

Question:

i just need to know the color chart to the factory wiring harness, so i can know what wires to splice into without using my test light. the truck came from factory without any type of wiring for pulling trailers. I am going to be installing a 4-way flat.

asked by: Kyle

0

Expert Reply:

If your Silverado has the factory plug located above the spare tire, the easiest way to install a 4-pole would be to use the Tow Ready # 118384. Simply remove the protective cap covering the plug, plug in one of the connectors on the Tow Ready Harness and run the 4-pole to the desired location.

If there is nothing but the harness above the spare tire with no plug on it, the wiring from the 4-pole like part # 18002 would connect to the factory harness color for color, yellow to yellow, green to green, brown to brown and white to white. If you would like to have a 7-way in addition to the 4-pole for future flexibility, you could use part # HM40975-11998, which would wire into the harness above the spare tire, color for color. If there is the factory plug, use part # HM40975. The factory connector would plug directly into the back of the # HM40975.

I produced two photos showing what the factory plug or harness (whichever is present) looks like.

expert reply by: Mike L

0

click to enlarge

Answer 1

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 2

For a receiver hitch that will fit your 2002 Chevrolet Silverado 1500, I recommend going with the Draw-Tite Ultra Frame Trailer Hitch Receiver #41932. This has a max towing capacity of 12,000lbs and max tongue weight of 1,200lbs; or 14,000lbs and…

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Answer 3

Typically, the tow package wiring is located along the frame rail or above the spare tire. The usual wire colors and their functions are as follows: Dark blue- brake controller output voltage Red or Orange- 12-volt accessory power Yellow- left…

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Answer 4

If your 2002 Chevrolet Silverado did not come wired with a 7-Way plug from the factory, you will need to connect the brake controller power wire and the electric brake wire underneath your hood to complete the brake controller installation. Once you…

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Answer 5

In the tow package wire bundle located near the spare tire on your 2002 Chevrolet Silverado, there should be a darker blue wire to which you can connect the blue wire from your wire harness, #HM40975-11998, with a butt connector, #05732-2. If there…

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Answer 6

It is entirely possible that the blue brake output wire is not run from under the hood to the back of your 2002 Chevy Silverado. This was a common issue even on models that came with a factory tow package. Check under the hood between the fuse panel…

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Answer 7

This is not an uncommon situation for your generation of Chevy Silverado. If you remove the cover on the power distribution box, look for a row of larger fuses on the left side of the box (if facing the motor from the front of the truck). If there is…

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Answer 8

Both the pigtail and the trailer harness included with the Peterson #V944 LED Taillight Kit are 18 gauge, which is typical for trailer lamps and wiring harnesses. 18 gauge wire is actually perfectly sufficient for the reduced power draw of LED lamps…

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Answer 9

That is a pretty odd issue. Since the fuses look good, and you do not see any obvious issues with the wiring I would check that there is no corrosion causing power to jump from the 12v power pin to the other pins, as this would be the most likely…

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Answer 10

There is power running to both sides at the same time on the Pollak 7- and 4-Pole Trailer Connector #HM40975. However, using both at the same time could result in over drawing power which could lead to blown fuses, electrical fire, accessories not…

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Answer 11

No worries. What you describe sounds like the classic case of a bad ground. Because vehicle headlights use a fair bit of power and remain on continuously (rather than blink) they often are the lighting function that causes a weak ground connection to…

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Answer 12

The correct replacement trailer connector for your 2002 Chevrolet Tahoe is actually the Hopkins Endurance Twist Mount 7-Way RV Trailer Connector part #HM40930 as it will use the same mounting bracket that you have attached in your photo. This is…

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Installing 4-Pole Trailer Connector on 2002 Chevy Silverado with No Trailer Connector

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