Expert Answers about Chevrolet Trailer Wiring
- How to Identify Functions for Each Wire on a Trailer
- Trailer wiring often uses specific color wires for a particular lighting function but there is no guarantee that your trailer uses the common wire colors. This just means that you'll test the wires on the trailer to see what each one does; then you will know how to connect it.
You can refer to the linked article on trailer wiring that shows the usual configurations of 4-pole, 5-pole, 6-pole and 7-way wiring. Photos are included to show you the usual wiring colors for each function.
In...
view full answer... - Trailer 7-Way Connectors and Brake Controller For a 2009 Sterling 7500 Series Dump Truck
- With the Pollak Heavy-Duty, 7-Pole, Round Pin Trailer Wiring Socket # PK11720 it does not have a pin for a trailer brake controller as the commercial/agricultural trailers it connects to will tie into the air brakes on the truck. If you converted the auxiliary pin to use as a brake control wire you would still need to add a charge line circuit wire to maintain the breakaway battery on the trailer.
Switching to the Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector # HM48470...
view full answer... - Determining Wire Function On Boat Trailer With No Trailer Connector
- It sounds like someone ran the wires as what we call a wishbone. The only way to tell how the wiring is connected to the lights is to use a 12V battery and a circuit tester like part # PTW2993.
Attach the white ground wire to the battery negative terminal and then one by one connect the other wires to the positive terminal. You can have someone watch the trailer lights while you do the testing to determine what function each wire carries. Depending on how many lights you have on the trailer...
view full answer... - Wiring A 7-Way Plug To A Trailer With Only 5 Wires
- As far as your trailer side, We would have to assume that the green is your right turn, yellow is left turn, and brown is tail lights. Generally white will be ground and black will be 12v power. That being said, wire colors are not universal, and we do recommend going in with a wire tester # PTW2993 to determine function.
When installing the 7 way, you would leave the purple (reverse lights) and blue (brake output) wires disconnected. Since it sounds like your trailer is not wired for...
view full answer... - Testing Utility Trailer With 2 White Wires On 7-Way Connector
- It sounds like your trailer has been wired with 2 of the 7-way connector functions using the same color wire. If this is a new trailer you may want to ask the prior owner or dealer if the wiring has been modified.
You can use a 12V power source like a battery and also use a circuit tester like part # PTW2993 to test the wire functions on the trailer to find out what each of the wires are used for. I have attached a helpful article that shows what the typical wiring and colors are.
view full answer... - Parts Needed To Re-Wire Yakima Rock and Roll Trailer
- Part # Y8880203 and # 8880161 would be the wiring for the tongue while part # 8880162 would be needed for the rear lights. The balance of the wiring is run inside the framework of the Rack and Roll trailer.
Since you said you are replacing all of the wiring you may want to use a wire harness like part # A20WB to re-wire your trailer. This harness gives you the 4-way connector at the front of the trailer and also the wiring to run down each side of the trailer for tail lights and running...
view full answer... - What Is Difference In Wiring For Replacement Lights On Trailer
- The wiring on any lights you put on your trailer depends on the functions you are using the lights for.
It sounds like you are wanting to replace the clearance or marker lights on your trailer. If you have one wire, it will be attached to the running light wiring and the light will be grounded through the mounting hardware.
If you have 2 wires, it will typically be attached to the running light circuit and the second wire will be a ground. and attached to any clean bare metal surface....
view full answer... - Are Trailer Wiring Colors the Same as Factory Vehicle-Side Connector Wiring Colors
- The information I found in the online version of the 2014 GMC Sierra's owner's manual lists the colors you referenced as the wire colors used for the functions of the vehicle-side 7-way connector. Vehicle manufacturers do not use the same wire color code as the trailer industry. You can use a circuit tester, like # 40376, to confirm the functions of the wires on your vehicle-side connector.
On a 4-Way flat trailer connector # 18004, the bonded 4 wire # 16-4B-1, and traditional 7-Way trailer...
view full answer... - Hopkins 7-Round to 7-Blade Adapter Pins
- Appreciate the photo of your 7-round connector and I have added a diagram showing the pin differences from a 7-way round like yours to a 7-blade, which is what the pins will be for the Hopkins Trailer Connector Adapter - 7-Pole Round Pin to 7-Pole RV # HM47425.
To use a trailer brake controller you can change out to a standard 7-way since there isn't a brake controller wire option on your current 7-way; you can re-wire it with the Hopkins Endurance Quick-Install 7-Way Trailer Connector...
view full answer... - Can An A-Frame Trailer Jack Be Wired To The 7-Pole Cable
- Yes, it is possible to wire your Stromberg Carlson Electric Trailer Jack # JET-3555 into the 7-way. There isn't much room inside of the 7-pole plug so the easiest way to power your jack from the 7-pole would be to wire it to the 12v power in your trailer's junction box.
If you follow the 7-way cable along the frame of the trailer you'll see some sort of box where the wires from the cable will run and connect to the wires for your trailer's lighting and brakes. A lot of the trailers that...
view full answer... - Do I Need To Run Separate Wires To Each Tail Light For the Running Lights On a Trailer?
- You can route the wiring in either orientation. A harness like the Hopkins Endurance 4-Way Flat Trailer Wiring Harness # HM48265 is referred to as a wishbone harness and comes with 2 separate brown wires that are bonded to the corresponding green and yellow wires for running down both the left and right sides of the trailer. This is best when you have a trailer like a boat trailer where it is harder to protect the wire running across the rear of the trailer.
view full answer... - Recommended Replacement 4-Flat Wiring Harness
- From the image you attached, I think what you have is each of the taillight circuits on your 4-way have two wires ran to them for each side of the trailers wiring. You can wire the two wires of each pin to the single wires of a new 4-way allowing the circuits to get the same signal. Depending on how much of the wiring length needs replaced, you can use the Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector, # HM38134 for a short length. If you have damage to the last few feet...
view full answer... - Adding An LED Backup Light To A Trailer
- Yes, you certainly can connect the backup light wire to the reverse light on your pickup. Just as you said the red wire to power and the black to a ground. The LED light being polarity sensitive will not be an issue. You wont damage them if you mistakenly wire them wrong, they just wont work.
view full answer... - Is 12V Wire On 2016 Ford F-150 Smaller Than Power Wire On Trailer Connector Wiring
- The functions for a 4-way trailer wiring is left turn, right turn, running lights, and ground. There is no 12V wire on a 4-way trailer connector.
If you are talking about a 7-way trailer connector here are the suggested wire gauges: Right turn, left turn, taillight, and back-up are 16 gauge. Ground, brake, and 12V power are 12 gauge.
I have attached a link to a wiring helpful article. In the article there is a wire chart for the vehicle manufacturers. On a Ford the orange wire with...
view full answer... - Wiring A Trailer With A 5 Pin 7 Wire Harness
- A typical 5 pin connector will be wired as follows;
Green: Right turn/brake light
Yellow: Left turn/brake light
Brown: Tail/running lights
White: Ground wire
Blue: Reverse lockout
If your 5 pin has 7 wires, you likely have multiple grounds, and/or multiple running light circuits. For example if your trailer harness has two white wires you can splice the two together, and likewise with the two running light wires. This way you can wire in your 5 wire 5 pin connector. Keep in mind that...
view full answer... - Circuits and Functions Supported by 4-Pole Flat Trailer Wiring
- In 4-pole flat type trailer wiring such as part # 002220 the tail light circuit (also known as the running light circuit) is usually assigned to the brown wire which connects to the pin next to the ground pin. You can see this in the photo I linked for you.
This type of wiring format does not support an additional circuit for +12V auxiliary power as might be needed to top off a trailer-mounted battery or to operate a jack or winch on the trailer. Other wiring formats with additional circuits...
view full answer... - Car Hauler trailer Wiring
- For you to retain the functions of the electric brakes on your car hauler trailer you will need to use a connector that will carry the power for all of the functions from the vehicle. For what you are doing you would be better off using a 7-Way Molded Trailer Wire Connector # H20046 since it has all 7 circuits and the brake output circuit wire has 12 gauge wire.
I have attached a video that shows how to replace the 7-pole connector you can check out.
view full answer... - Parts Needed To Replace Trailer Wiring
- When people replace wiring that is run inside a channel or frame they will attach the new wiring to the end of the wire they want to replace and pull it carefully from the other end. If you are unable to pull the wire, you can use a fish wire to try and run the wiring through the frame. This can be tough depending on the frame or channel.
Another method is to run new wiring on the outside of the trailer frame. You can use a wire loom to protect the wires from being damaged. Or you cold...
view full answer... - Wire Gauge Size of the 40 Ft 5-Way Trailer Wiring Harness A40W5B
- The 40 Ft 5-Way Trailer Wiring Harness part # A40W5B uses 20 gauge wire according to Optronics. This is pretty standard and will work for the vast majority of trailers without issue.
view full answer... - Trailer 7-Way Wiring For Hart Horse Trailer That Pulled From Plug
- I have included a picture for the trailer 7-way connection and the typical wire colors used and their location. As the wire colors are not standard for every trailer you will want to confirm what each wire does. The easiest way is to use a 12 volt battery to isolate what each wire does on the trailer. If you do not have the capability to do this you can also use trial and error.
The wires are most likely as follows.
Red- Left Turn/Brake Light
Brown- Right Turn/Brake Light
Yellow- Reverse...
view full answer...
Go To Results