![]() ![]() ![]() Here are a few label examples: (1) A for Amperage or Amps. ![]() Meaning, they’re the same abbreviated codes found in an Audi service manual or an American car reference book, like the downloadable Chrysler PDF manuals found here on .Īll of these markings work together to add clarity to the diagnostic drawing. These are standardized throughout the industry. They use the codes or labels to show circuit connector pin numbers, circuit values or component polarities. Auto Wire Diagram Advanced Symbols Auto Diagram Labeling SystemĪbbreviated codes on the diagrams provide circuit path and part or component information. Electrical repair diagrams are mostly standardized for the above symbols. Examples are: Variable Battery symbol (5) and the Case Ground symbol (6). Variations of symbols will exist depending on function or other characteristics. The G100 designation is to help you find this location on the automobile.įactory service manuals provide component location diagrams including important ground locations. The G100 ground symbol indicates a connection pointing downward (ground) that dissipates energy. The resistor symbol appears to impede energy flow, which is a resistor function. The battery symbol appears to be made of layers or plates, common to internal battery construction. Note the switch symbol displays an open or closed circuit path, which is what an actual switch performs. For example, a few basic symbols common to electrical schematics are shown as: (1) Switch, (2) Battery, (3) Resistor and (4) Ground. Automotive Wiring Basic Symbols Common Symbols for Automotive DiagramsĪutomotive electrical diagrams provide symbols that represent circuit component functions. However, the abbreviated text labels or codes placed next to the symbols and lines help you out further by providing descriptions or location information. These lines actually represent current flow in and out of components connection points. It’s important to recognize when you see the solid and dotted lines on the diagram that there’s a major difference between the two. In fact, an electrical symbol may have a slight resemblance to the actual component or its main function. In the electrical schematics to follow you’ll see symbols arranged in a circuit to better reflect the function, power state, and relative location of various components. Understanding this visual language leads to faster detection of malfunctions and the capability to solve difficult car problems. Therefore, on this page you’ll find in depth definitions for some of the most common symbols used in the industry standard line drawings. These diagrams provide the quickest path to success when dealing with complex electrical problems on any vehicle. ![]()
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