Wire Colors and Circuit Numbers

As we progress in understanding the wiring diagram you may have noticed that each wire has an acronym and a number next to it. These are used to differentiate a circuit from one another. These wires are normally bundled up in a harness which can have two to over a hundred wires. Common colors are used together to help the technician identify the correct circuit.

Color Abbreviations

The follwing sequence is used when descibing a wire color:

Color modifier of the wire, such as light or dark (if applicable)
Primary color of the wire
Secondary color of the wire (tracer/stripe)

Use the following spread sheet to help you along with identifying color abbreviations.

Wire insulation color

Lets Practice

Use this diagram to follow along.

Use this diagram to follow along. Pop out the image on the top right corner, click save image as, and you can open it on an editor or print it out to follow along our practice tutorial.

Fog lamp #3 Diagram.pdf

Video Breakdown

Click on this video to follow along with your wiring diagram.

Wire colors.mkv

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