1 - relay block. Shown as a gray rectangle. Symbolizes positive connections
2 - an indication of the continuation of the connection to another part. J362 = Anti-theft relay. T6/2 = 6-pin male connector, pin 2
3 - internal connection (thin line). This connection exists inside the part and is not wired
4 - switching designation. The open side of the patch icon indicates that the node is connected to another circuit
5 - wire cross-section in mm2, e.g. 0.5 = 0.5 mm2
6 - electrical circuit with wire laying. All switches and contacts are shown in mechanical rest
7 - plug connections. T4 = 4-pin plug, /4 = pin 4
8 - node designation. G39 lambda probe with heater
9 - part designation. N80 = solenoid valve 1. The legend below the diagram shows the name of the part
10 - current path number
11 - «weight» (-) car
12 - arrow. Indicates the continuation of the diagram on the next page
13 - screws on the relay board. The white circle indicates that this connection is collapsible
14 - relay location number. Indicates the location of the relay on or at the relay box
15 - link to connect the line with another node. The number in the rectangle indicates which path the wire is connected to. In this case, to 114
16 - connection in the wiring harness. Non-separable connection
17 - connection terminal In this case, terminal 30, 45-pin plug, pin 21
18 - fuse. S28 = fuse #28 15 amps
19 - an indication that the wire is connected to the final part of the wiring diagram. The letter indicates where the wire is located in the following diagram
20 - ground connection point (-). The legend provides data on finding the mass point (-) by car
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