Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ System of injection
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signalling devices
- Devices and auxiliary devices
   Check of indicators and signaling devices
   Elements of a combination of devices
   Indicator of amount of fuel
   Indicator of temperature of cooling liquid
   Voltage stabilizer
   Additional devices
   The top indicators in a combination of devices
   Indicator of cooling liquid
   Indicator of brake system
   Oil pressure indicator
   Indicators of indexes of turns
   Lower indicators
   Battery charge indicator
   Indicator of indexes of turn of the trailer
   Safety cushion indicator
   Indicator of anti-blocking system
   Indicator of a driving beam
   Indicator of the parking brake
   System of self-examination
   Ignition lock
   Check of switches
   Buzzer of shutdown of lighting and radio
   Heating of back glass
   Check of screen wipers and windscreen washers
   Screen wiper engine
   List of malfunctions
   Screen wiper of back glass
   List of malfunctions
   Replenishment of a washer reservoir of glasses
   System of washing of headlights
   Audio system
   Antenna of back glass
   Electric regulation of external rear-view mirrors
   System of locks with the central management
   Power windows
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Check of switches


  1. You can pierce isolation of a cable by means of a control lamp with needle contact and establish, what cables are energized.
  2. Choose the electroscheme corresponding to the required switch.
  3. At first it is necessary to check, whether switches are powered; for this purpose it is necessary to include ignition or lighting several times.
  4. Then it is checked, whether carries out the switch in the relevant provision tension further on a chain.
  5. On the example of the ignition lock switch check looks as follows:
  6. To remove a combination of devices that wires became available.
  7. To connect a wire of a control lamp to "weight".
  8. To pierce a control needle isolation of the checked wire.
  9. Both thick red wires of the plug 30 have to be constantly energized the accumulator.
  10. The gray-yellow plug of the R-chain is in ignition lock "position of rest" energized, at turn of a key giving of food stops.
  11. The black-yellow wire of the plug X is energized only in the provision of a key "ignition is included"; as well as a thin red wire to a buzzer of a parking light and radio.
  12. The black wire of the plug 15 is powered in the provisions "ignition is included" and "start".
  13. The red-black wire of the plug 50 of the order of start of a starter of the engine is energized only in the situation "start".