Car electrical system diagram (VAZ-2121)

The electrical circuit diagram of the vehicle is shown in Fig. 7-2.

Fig. 7-2. Wiring diagram of the vehicle's electrical equipment units: 1 - side direction indicators - 2 - front lights; 3 - headlights; 4 - headlight washer motors; 5 - sound signals; 6 - headlight wiper and washer relay; 7 - low beam headlight relay; 8 - high beam headlight relay; 9 - headlight washer motor; 10 - Low brake fluid level sensor; 11 - portable lamp socket; 12 - Oil pressure warning light sensor; 13 - oil pressure indicator sensor; 14 - coolant temperature gauge sensor; 15 - ignition distributor; 16 - spark plugs; 17 - Windscreen wiper motor; 18 - ignition coil; 19 - generator; 20 - carburetor shut-off valve; 21 - starter; 22 - Windshield washer motor; 23 - voltage regulator; 24 - Battery charge indicator lamp relay; 25 - battery; 26 - Windscreen wiper relay; 27 - additional fuse box; 28 - main fuse box; 29 - Parking brake indicator lamp switch; 30 - differential lock indicator light switch; 31 - Reverse light switch; 32 - Carburetor air damper indicator lamp switch; 33 - brake light switch; 34 - heater electric motor; 35 - Direction indicator and hazard warning light relay; 36 - additional resistor of the heater electric motor; 37 - Instrument lighting switch; 38 - headlight switch; 39 - direction indicator switch; 40 - Sound signal switch; 41 - Windscreen wiper switch; 42 - Windscreen washer switch; 43 - ignition switch; 44 - Outdoor lighting switch; 45 - Heater switch; 46 - Headlight wiper and washer switch; 47 - cigarette lighter; 48 - Hazard warning switch; 49 - ceiling light switches located in the door pillars; 50 - oil pressure gauge with low pressure indicator light, 51 - fuel level gauge with fuel reserve indicator light; 52 - tachometer; 53 - Parking brake indicator lamp; 54 - Battery charge indicator lamp; 55 - carburetor air damper control lamp; 56 - speedometer; 57 - External lighting indicator lamp; 58 - Direction indicator lamp; 59 - High beam indicator lamp; 60 - Parking brake indicator lamp relay-interrupter; 61 - Brake fluid level indicator lamp; 62 - differential lock indicator lamp; 63 - coolant temperature gauge; 64 - lampshades; 65 - Fuel level and reserve indicator sensor; 66 - rear lights; 67 - Death sign lighting lamps

In all the diagrams provided in the "Electrical Equipment" section, the color of the wires is indicated by letters, with the first letter being the color of the wire itself, and the second being the color of the stripe on the wire (see table 7-2).