![]() The color of the wire in a vehicle is very important. ![]() The ORN symbol is usually depicted on the diagram as a color spelled out or abbreviated with four letters or less. ![]() ORN SymbolĪdvanced electrical wiring diagrams use one symbol, the ORN symbol, for the color and size of the wire. The circuits which are directly associated with power are red. Red is a symbol of power throughout the diagram. ![]() The ground is represented by a ground symbol that is green. The simplest of the circuit colors is green. Each circuit has a specific voltage condition and differences can be viewed by color. The identification of the voltage conditions in the circuits is where the color identification process really begins. If the code reads BR, that means the wire is blue with a red stripe. The second letter represents the wire striping. The first letter of the code represents the color of the wire. The electrical wiring diagram also uses two-letter codes to identify the type of wire. These types of secondary electrical wiring symbols are actually universal, which makes it easier to interpret them. The case ground symbol is depicted by an image of an arrow crossing over. More advanced electrical diagrams may also show the circuit paths and amps for the system. Beyond these four symbols, there may be other secondary symbols, such as for the case ground or the variable battery source. There are generally the same four symbols on the electrical wiring diagram: an image of plates or layers which resemble the internal structure of the battery is the symbol for the battery, an image of a connector going in a downward direction is used for the ground, a closed or opened circuit path for the switch, and an image of energy flow being impeded is used to depict the resistor. The electrical wiring diagram uses different symbols to represent the ground, resistor, switch, and battery in the wiring system. The Color-Code legend displays which color means what. The abbreviated codes may represent circuit paths, a part, or information about a specific component. The Color-Code Legend began as a simple illustration of a very basic electrical wiring system and quickly evolved into a more complex diagram.Įvery car comes with the Color-Code Legend, a graphical representation of the circuitry for that car. Each circuit has to have a load, and each load must have a ground side and a power side. The majority of automobile wiring diagrams use the Color-Code Legend which uses two diagrams and circuits to present the rules for all circuits according to Ohm’s Law. However, not all manufacturers use the unspoken standard therefore, the wiring colors can depend on the make and model of the car. The industry has not established a universal code for wiring colors however, most manufacturers use the same design. The wiring has sharp edges lined with a rubber grommet and runs through openings Electrical Wire Colors & Symbols The electrical wiring is mounted to the body of the car to keep them from coming in contact with other components. ![]() The terminal pushes onto a spade terminal. Wires connect to other components in the vehicle using terminals that are covered with plastic. There are several connector sleeves located where the wires branch off. The connector sleeve color is dependent on the size of the wires. The bare end of a wire extends of either end of the connector sleeve and then pinched using crimping pliers. The connectors on the wires are typically crimp connectors of different colors. These types of wiring are most commonly found in the relay controls and in accessories. Modern cars may have electrical wiring which are embedded in compact, plastic strips. Important: If you want to save $100s in servicing, diagnosis, and repair costs, improve your car's performance significantly and increase its value by 1.2x with little effort, download our Beginners Auto Maintenence & Repair Manual now. ![]()
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