What is the automotive wiring harness color chart? What are the automotive wiring harness colors?

An automotive wiring harness is a collection of wires that connect various electronic devices and sensors in a car, and they transmit power, signals, and data to various parts of the car through a unified wiring harness system. For easy identification and installation, automotive wiring harnesses usually use different colored wires and are coded according to certain standards. Here are some common automotive wiring harness colors and their corresponding functions: Black: Usually used for the ground wire, which connects the circuit to the body or ground. Red: Indicates a power wire, usually used to connect the positive battery terminal or other power source. Brown: Usually indicates a ground or negative wire, used to connect the negative terminal of the battery or other locations. Orange: Used for warning and safety features such as warning lights, horns, etc. Blue: usually indicates high beam or other headlight functions. Green: Indicates the ground wire, which is used to connect the circuit to the body or other locations. Yellow: Usually used for warning functions such as brake lights, back-up lights, etc. Purple: usually indicates a horn or sound system. Pink: Used to connect auxiliary equipment, such as mirror heaters. Gray: usually indicates light control circuits. White: usually indicates lighting circuits, such as interior lights. Black/white stripe: indicates ground or ground wire. Red/blue stripe: Indicates audio or communication circuits. Yellow/Green Stripe: Usually indicates a sensor circuit, such as an oxygen sensor. Orange/white stripe: usually indicates network or data circuits. It is important to note that there may be slight variations from one vehicle manufacturer to another and from one vehicle model to another, so there may be some additional colors or different function assignments in a particular vehicle's wiring harness. Additionally, some vehicles may use a marking or numbering system rather than relying solely on color to identify the wiring harness. The standardization of automotive wiring harness colors is intended to simplify the installation, repair, and troubleshooting process, as color coding makes it easier for technicians to identify and track wiring harness functions and connections. However, for complex wiring harness systems, it is still necessary to refer to relevant wiring diagrams and documentation to ensure accurate connections and operation.

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