Various schematic diagrams of the Audi A4 currently form a whole folder of papers on 461 pages. They are divided into 53 separate packages, each package, depending on the complexity of the node or block, covers up to two dozen pages or more. The number of diagrams is constantly increasing, so their reproduction would make our book too voluminous.
If, when working with any block, node or module, you need an appropriate circuit diagram, order it. We, on separate examples, will show only the principle of constructing circuits.
Each circuit diagram contains the name and serial number of the circuit, the image of the fuse box and the location of the relay. The gray field indicates connection to a positive potential (relay board), the bottom line means mass. If there is an arrow in the upper gray field that points to the left, then this means that the diagram on this sheet continues the diagram shown on the previous sheet. If there is an arrow in the upper gray field that points to the left, then the diagram continues on the following sheets. If there are no arrows on the sheet, then the circuit consists of only one sheet.
Capital letters on wires indicate continuation on the following circuit diagram. The designation of the part on the wire indicates that the wire goes to this part. The diagram shows a list of parts. The letter S denotes fuses, the letter T denotes detachable connections. Relay numbers are indicated in black squares with white numbers. The numbers in small print next to the wires indicate the cross-section of the wires in mm2, and the color corresponds to the actual color of the wire insulation.
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