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On-board electrical network
The sources and consumers of electrical energy, installed on the vehicle are interconnected onboard electrical network. The main elements of the electrical network are connecting wires, protection circuits against overloads and short circuits, switching means (Switches) and a variety of connectors and switchgear. The design and function of the part elements of the electric vehicle network discussed above with reference to specific products and systems. This section provides the missing information.
| Fig. 8.17. Location and numbering in the assembly block of safety locks in the car
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To protect the units of electrical equipment and wiring against overloads and short circuits using plug-type fuses installed in the mounting blocks. The unit, located in the car under the lining the left side of the instrument panel (Fig. 8.17) includes fuses listed in the Table. 8.7.
Table 8.7 circuits protected by fuses installed in the cabin Number Fuse | The strength of the current, A | Circuit Protected | 1 | 15 | Ventilation and heating system. Climate control | 2 | 15 | Also | 3 | 20 | Rear Defrost | 4 | 15 | Fog lights | 5 | - | Spare | 6 | 7.5 | Chain of the air conditioning control | 7 | 7.5 | Headlights on reminder buzzer outdoor lighting and the presence of the key in the ignition switch (switch instruments and starter). Alarm. The control circuit relays window and electric sunroof. Diagnostic connector | 8 | 10 | Relays preheating 1. Control unit for automatic gearbox. Lamps light backing. Warning immobilayze-ra. Device combination | 9 | 10 | Relay Control wiper and rear window washer | 10 | 15 | Car | eleven | 7.5 | Direction indicators (mode indicator) | 12 | 7.5 | The electronic block of management ABS | 13 | 15 | Cigarette lighter | 14 | 10 | Lamps stoplight in ABS | 15 | 10 | Direction indicators (alarm mode) | 16 | 10 | Heating element oxygen sensor in the exhaust gas | 17 | 15 | The electric fuel pump | 18 | 10 | The control circuit heated front seats | 19 | 20 | Wiper motor front seats | 20 | 7.5 | Diffuser salon. Lamp lighting luggage | 21 | 3 | Airbag | 22 | 10 | Airbag for driver and front passenger | 23 | 10 | Electric adjustment of the exterior mirrors | 24 | 7.5 | Car. Alarm. Electric headlight adjustment | 25 | 10 | Additional engine cooling fan 2. Solenoid valve EGR. The regulator Idle | 26 | 7.5 | Solenoid valve control circuit adjusting the timing Fuel 1. Lockout relay starter 3 | 27 | - | Spare | 28 | - | Also | 29 | 15 | The electric headlamp washer |
1 On cars with a diesel engine. 2 On cars with the climate system. 3 On vehicles with automatic transmission.
| Fig. 8.18. Location and numbering of the assembly block of safety locks in a motor compartment
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| Fig. 8.19. Relay arrangement in the assembly block the passenger compartment: 1 - relay the sunroof or windows; 2 - the main switch of the auxiliary equipment; 3 - additional relay accessories; 4 - relays fan; 5 - flasher relay and alarm
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| Fig. 8.20. Relay arrangement in the assembly block of the engine compartment: 1 - C relay; 2 - Relay rear window wiper; 3 - horn relay; 4 - the main fan relay; 5 - Additional fan relay; 6 - fan relay (motor CD20); 7 - the relay rear fog light
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| Fig. 8.21. Location of electrical components in the vehicle: 1 - Mounting the fuse box and relays; 2 - Electronic engine control unit; 3 - the airbag control unit; 4 - ABS electronic control unit; 5 - switch the engine control unit; 6 - time switch windscreen wiper; 7 - unit centralized locking doors; 8 - the relay of blocking of a starter; 9 - control of outdoor lighting headlights on reminder signaling the presence of the key in the ignition switch (switch instruments and starter); 10 - relay-breaker indicators and alarms; 11 - the switch of a stoplight; 12 - switch fog lamps; 13 - the relay of the fuel pump; 14 - time relay rear wiper; 15 - harness connector door switch; 16 - harness connector compartment and the engine compartment; 17 - switch windows and sunroofs
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Some relays and electrical units are installed separately from the mounting block (Fig. 8.21). In the color tab at the end of the book shows the basic scheme of electrical systems. Legend colors of the wires are given in Table. 8.1.
Table 8.8 circuits protected by fuses installed in the engine compartment Number Fuse | The strength of the current, A | Circuit Protected | 45 | 10 | Taillights (dimensional light) | A | 75 | System preheating 1 | FROM | thirty | Relays solenoids ABS | D | thirty | ABS pump relay | E | thirty | Engine cooling. Climate control | F | 25 | The system of centralized locking doors. Power sunroof | G | 75 | Onboard power supply | H | thirty | Engine cooling. Climate control | I | thirty | The power circuit breaker or ignition devices and starter | thirty | 7.5 | Electromagnetic clutch compressor. Electropneumatic valve fast idle speed 2 | 31 | 7.5 | The power circuit of the voltage regulator of the generator | 36 | 10 | Lights (dimensional light). Taillights (dimensional light) | 37 | - | Spare | 38 | - | Spare | 39 | 15 | The right headlight (low and high beam) | 40 | 15 | The left headlight (dipped beam). The control lamp of inclusion of headlights | 41 | 7.5 | Camshaft position sensor and the engine speed. Air mass meter. Immobiliser | 42 | 10 | Sound signal | 43 | 7.5 | Rear lights (fog light) | 44 | 10 | Taillights (dimensional light). Bulb license plate light |
1 On vehicles with a diesel engine. 2 On cars with the climate system. 3 On vehicles with a petrol engine.
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