Construction of electrical circuits Volkswagen Polo

1 - relay board

Indicated by a gray field. Shows connections with a positive pole.

2 - designation of the part to which the wire is directed

J3B2 - Anti-theft control unit, T6/2 - Plug connector, 6-pin, pin 2.

3 - internal connection (thin line)

This connection is not made by wire.

4 - graphic designation of an electrical circuit element

The shown open side of the graphic designation of an electrical circuit element indicates the continuation of the element on another electrical circuit.

5 - cross section in mm^2 and wire color

0.5 = 0.5 mm?, sw = black. For wire color abbreviations, see the Electrical Schematic Familiarity chapter.

6 - electrical circuit made by wire

All switches and contacts are shown in mechanical rest.

7 - plug connector

T4 = male connector, 4-pin; 4 = pin 4.

8 - graphic designation of an electrical circuit element

G39 - heated oxygen sensor.

9 - symbolic designation of an electrical circuit element

N80 - solenoid valve 1. In the explanations under the electrical diagram, the full name of the electrical circuit element is given.

10 - electric circuit number

11 - electric mass of the car

12 - arrow

Indicates the continuation of the wiring diagram on the adjacent page.

13 - pin on the relay board

The white circle indicates that this is a plug connection.

14 - relay location number

Indicates the position number of the relay on the board.

15 - indicator of the further direction of the wire

The number in the square indicates to which current circuit this wire goes next; here - to the electrical circuit 114.

16 - connection in the wiring harness

17 - connector location designation

Here: terminal 30, 45-pin connector, pin 21.

18 - fuse designation

S28 = fuse no. 28.15 A.

19 - indication of the continuation of the wire in the adjacent electrical circuit

The letter indicates which wire in the following diagram is the continuation of that wire.

20 - The circled number indicates the ground or ground connection in the wiring harness.

The explanations below the diagram indicate the ground connections in the vehicle.

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