Symbols used in electrical diagrams (VW Passat B4)

Symbols used in electrical diagrams:
1 - fuse; 2 - thermal bimetallic fuse; 3 - battery; 4 — starter; 5 - generator; 6 - ignition coil; 7 - ignition distributor with contact breaker; 8 - ignition distributor with contactless sensor; 9 — spark plug; 10 - glow plug; 11 - Automatic carburetor starting device; 12 - thermal time relay; 13 — pressure regulator, additional air supply valve; 14 - electromagnetic valve; 15 - Electric motor; 16 - Two-speed windshield wiper motor; 17 - manual switch; 18 - thermal switch; 19 - Push-button manual switch; 20 - mechanically controlled switch; 21 - menometric switch; 22 - Multi-pole manual switch; 23 - variable resistor; 24 — thermistor; 25 — relay; 26 - electronically controlled relay; 27 - resistor; 28 - diode; 29 - Zener diode; 30 — LED; 31 - arrow pointer; 32 — electronic control unit; 33 - Analog clock; 34 - digital clock; 35 - Multifunctional display; 36 - buzzer; 37 — fuel consumption indicator; 38 - speed sensor; 39 - incandescent lamp; 40 - two-filament incandescent lamp; 41 — interior light; 42 — cigarette lighter; 43 — rear window heating element; 44 - sound signal; 45 - detachable connection; 46 — detachable connection on an electrical equipment element; 47 - branch connection; 48 - detachable wire connection; 49 - non-separable wire connection; 50 - connection of wires inside the element; 51 - wire with resistance; 52 — headlight corrector electric motor; 53 — TDC induction sensor; 54 - sliding contact.