BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
- 13. Electric equipment
   13.1.2. Search of malfunctions
   13.1.3. Safety locks
   13.1.4. Relay
   13.1.5. Breaker of indexes of turn / alarm system
   13.1.6. Switches on a steering column
   13.1.7. Ignition lock
   13.1.8. Receiver
   13.1.9. Antenna
   13.1.10. Guard of devices
   13.1.11. Payment SI (index of maintenance)
   13.1.12. Headlights – replacement of lamps
   13.1.13. Adjustment of headlights
   13.1.14. Headlight case
   13.1.15. Replacement of lamps
   13.1.16. Screen wiper electric motor
   13.1.17. Heater of back glass
   13.1.18. Safety cushions
   13.1.19. System cruise control
   13.1.20. The central locking system
   13.1.21. Electric stelokpodjemnik
   - 13.2. Electrical circuitries
      13.2.1. Systems of start-up, akuumulyator charge, indexes of turns
      13.2.2. Headlights / back lamps
      13.2.3. Diagnostics block
      13.2.4. Guard of devices and lighter
      13.2.5. Control system of the Motronic engine
      13.2.6. System cruise control
      13.2.7. Central lock, security alarm system, on-board computer
      13.2.8. Washer of headlights
      13.2.9. Power windows
      13.2.10. Heater and conditioner
      13.2.11. Heaters of seats
      13.2.12. The electric drive of seats with the memory block
      13.2.13. The electric drive of seats without memory block
      13.2.14. Receiver and audio system
      13.2.15. System of injection of L-Jetronic fuel
+ 14. Useful tips



13.2. Electrical circuitries

GENERAL INFORMATION

The schemes given below are standard. Before troubleshooting according to schemes check safety locks and degree of a charge of the battery. Make sure that on sockets there is no dirt, and also the weakened and broken contacts.

Designations of color of isolation of wires, etc.

BK – black

BL – blue

BR – brown

GE – yellow

GN – green

GR – green or gray

GY – gray

OR – orange

PK – pink

R – red

RS – pink

RT – red

SW – black

TN – yellowy-brown

V – violet

VI – violet

W – white

WS – white

Y – yellow