Therefore, the ground wire (-) The battery is also connected to the car body. However, sometimes this earth connection is not enough, and the corresponding consumer is connected to earth directly by a wire, the insulation of which is usually painted black. Switches, relays, fuses, meters, electrical motors, or other electrical components may be connected in a separate electrical circuit. In order to be able to connect these consumers correctly, the individual connecting wires have different colors.
In order to visually streamline the interweaving of wires, at least on the electrical diagram, the entire electrical system of the car is broken down into separate electrical circuits. Electrical parts that are interconnected are depicted in a general electrical diagram.
Parts that function in several electrical circuits are shown in each electrical circuit.
Attention: The image of parts and wires is given without scale. For example, an electrical wire longer than one meter in an electrical circuit may have the same length as a wire that is only a few centimeters long.
The most important terminal designations
Terminal 15 powered by the ignition switch. Current flows through the wires only when the ignition is on. The wires are usually black or black with colored stripes.
Terminal 30. Battery voltage is always connected to this terminal. The wires are mostly red or red with colored stripes.
Terminal 31 connects to the mass. Ground wires are usually brown.
Each electrical circuit has letters on the left and right edges (A to F), and at the top and bottom edges - digital designations (from 1 to 16). These designations can be used to facilitate the search for the desired part on the diagram, if the position of the part is previously recorded as a sequence of the corresponding letter and number.
The letters next to the conductors on the wiring diagram indicate the colors of the wires in the car. The decoding of the colors of the wires is placed directly before the first electrical circuit.
The designation of plug and terminal connectors begins with the letter C (e.g. C-1108). Soldering point designations begin with the letter S, and ground connection designations begin with the letter G.
The left side of the vehicle, when viewed in the direction of travel, is indicated by the symbols LH in the electrical diagram, and the right side by the symbols RH.
Model year 1991
Due to lack of space, diagrams for all engine variants and model variants, as well as for each model year, cannot be considered. The suggested wiring diagrams refer primarily to models from 1985 to 1992. However, owners of newer car models can also be guided by the proposed wiring diagrams.
Diagram explanation
Wire color decoding
- BL - blue
- BR - brown
- GE - yellow
- GP - gray
- GN - green
- RS - pink
- AT - red
- SW - black
- VI - purple
- WS - white
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