Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
- Signalling devices
   Check of indexes of turn and the emergency light alarm system
   Stoplight check
   The stoplight switch
   The list of malfunctions
   Check of a sound signal
   Short-term signal a headlight
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


Check of a sound signal

By pressing a horn contact to "weight" (case) is provided with contacts in a steering wheel (3) and in a payment of a sound signal (1). Further the way passes through штекерное connection (2).

On an illustration horns (1 and 2) are visible at the removed bumper.

Constant check

By pressing a horn located in a steering wheel, at the included ignition should work a usual or two-tone sound signal. The button of a sound signal closes on "weight" (case) an electric chain of the relay of a sound signal (the head Devices and auxiliary devices). Food giving to the relay goes from plug H receiving pressure only at included ignition.

At the closed electric chain (that is at the pressed horn) relay contacts become isolated, and to a sound signal a food on a wire with a black-yellow cover arrives. Conducting to "weight" for a sound signal goes on a brown wire.

Faulty sound signal?


    To remove the bottom protection of a motor compartment (the head body Elements). To disconnect tips of wires. To remove a corresponding horn. To connect to everyone штекерному to a socket on an auxiliary wire and to connect it to positive and negative plugs of the accumulator. If it is audible nothing, means, this horn is faulty. Sometimes it is possible to adjust or return rattling or absolutely "mute" horn to a life rotation of the adjusting screw located on its underside. To clear the screw from заливочной mastics. After adjustment again загерметизировать the screw hermetic for a body. The same method of check should be applied and at a two-tone sound signal.