VOLKSWAGEN GOLF IV

since 1997 of release

Repair and car operation


Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
+ 3. Cooling system
+ 4. Fuel system
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
+ 12. Brake system
+ 13. Body
- 14. Electric equipment and electroschemes
   14.1. Filament lamps
   14.2. Electric chains
   + 14.3. Detection of not closed chain
   14.4. Safety locks
   + 14.5. Accumulator
   + 14.6. Generator
   + 14.7. Starter
   14.8. Replacement of bulbs of external lighting
   14.9. Removal and installation of an additional signal of braking
   14.10. Replacement of bulbs of internal lighting
   + 14.11. Devices of external lighting
   + 14.12. Adjustment of light of headlights
   14.13. Removal and installation of a combination of devices
   14.14. Removal and installation of switches of a steering column
   14.15. Removal and installation of switches
   14.16. Removal and radio receiver installation
   14.17. Removal and installation of high-frequency loudspeakers
   14.18. Removal and installation of low-frequency loudspeakers
   14.19. Recommendations about phone installation
   14.20. Aerial
   14.21. Check of a heater of back glass
   + 14.22. Explanations to electric circuits
   + 14.23. Schemes of electric equipment of the VW Golf car since September, 1997.


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14. Electric equipment
GENERAL INFORMATION

Consumers incorporate to the positive power supply a wire, and with minus – through a car body (weight). Such method allows to reduce number of wires and to simplify installation.

The electric system has a 12-volt food with negative grounding and consists of the accumulator, the generator, a starter, consumers of the electric power and electric chains.

For protection of electric chains the safety locks which color corresponds to a current of protection of a safety lock are used. Serviceability of a safety lock is determined by presence of the wire conductor connecting contacts of a safety lock.

At work with the electric equipment remove a weight wire from the accumulator to prevent possibility of short circuit of electric chains.

The electric equipment of the engine includes system of ignition, a charging and start.

The battery charging is made from the generator which is put in action by a belt from a pulley of a cranked shaft.

The starter represents the electric motor of a direct current with the mixed excitement with the electromagnetic traction relay. At engine start the traction relay moves a leading gear wheel to gearing with a gear wreath of a flywheel before the starter will receive a food from the accumulator. After engine start the coupling of a free wheeling disconnects a starter anchor from a gear wreath of a flywheel.
Prevention

At works on electric system not to damage semi-conductor devices (diodes and transistors), is necessary to fulfill the following requirements:

  – in operating time of the engine do not disconnect the accumulator, the generator of an alternating current or any electric sockets;
  – at carrying out any works remove the negative plug from the accumulator;
  – at carrying out electrowelding works on the car disconnect the generator of an alternating current and the electronic control device;
  – do not allow operation of the engine with the generator disconnected from electric system;
  – do not check operability of the generator, closing its target contacts on weight.