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The car wiring harness is like a car’s blood, but its function is complex. When assembling and servicing, you must know the colors of the wires in a harness. The colors have specific rules and meanings. So today, I’ve compiled a list of car wiring harness color codes by country for you to utilize when needed.
| Abbreviation | English | Abbreviation | English |
|---|---|---|---|
| Bk | Black | Bu | Blue |
| BN | Brown | CR | Clear |
| Dk Bu | Dark Blue | Dk GN | Dark Green |
| GN | Green | GY | Gray |
| LT Bu | Light Blue | LT GN | Light Green |
| OG | Orange | Pk | Pink |
| PL | Purple | RD | Red |
| TN | Tan | VI | Violet |
| WT | White | YL | Yellow |
| Abbreviation | English | Abbreviation | English |
|---|---|---|---|
| BL | Blue | BR | Brown |
| EL | Gream | GE | Yellow |
| GN | Green | GR | Gray |
| M | Maroon | NF | Neutral |
| OG | Orange | RS | Pink |
| RT | Red | SW | Black |
| VI | Violet | WS | White |
| HBL | Light Blue | HGN | Light Green |
| Abbreviation | English | Abbreviation | English |
|---|---|---|---|
| B | Black | W | White |
| R | Red | G | Green |
| L | Blue | Y | Yellow |
| LG | Light Green | BR | Brown |
| OR | Orange | P | Pink |
| Pu | Purple | GY | Gray |
| SB | Sky Blue |
| Abbreviation | English | Abbreviation | English |
|---|---|---|---|
| B | Black | O | Orange |
| W | White | Y | Yellow |
| Gr | Gray | G | Green |
| Br | Brown | Bl | Blue |
| R | Red | V | Violet |
FAQ
1. How can I identify the wires in my automotive wiring harness?
The easiest way to identify wires in an automotive wiring harness is to look for a color code. The code is usually printed on the insulation of the wire. If you can’t see the color code, a multimeter can measure the voltage or resistance of this wire.
2. Can I rearrange pre-existing wiring according to the car wiring harness color code?
Following the wire harness color code is highly advisable if you modify existing wiring. Doing so means that:
- Maintenance Simplified: Technicians can quickly identify and trace wires when they are all the same color, which makes maintenance repairs easier.
- Effective Troubleshooting: Using a consistent color code makes identifying and solving wire problems easier.
- Modification in the future is more straightforward: Consistent wire color codes between existing wiring simplify changes.
3. Are there differences between GM and Ford wiring color codes?
Yes, there is a difference between GM and Ford wiring color codes. Each automobile manufacturer uses its color codes for wiring systems in its vehicles. While there may be some similarities, for instance, using black for ground wires, other colors indicate different circuits and components on various cars. Referring specifically to the wiring diagram or documentation for a particular vehicle is very important to ensure that the cables can be accurately identified and connected.
Apple Liu is Romtronic’s Marketing Manager, focusing on business growth across the Asian market. With a background in International English and eight years of sales experience in the electronic cable and harness industry, she brings both in-depth industry knowledge and a global outlook to her role.
In addition to leading market strategy, Apple also oversees content development and editorial work—crafting clear, engaging messaging that reflects Romtronic’s values and technical strengths. She is passionate about digital engineering and is committed to strengthening Romtronic’s brand presence and innovation in a competitive global landscape.
