E3010 Horns

Description

The car is fitted with a horn system which consists of two horns with different tones: a high tone and a low tone horn. Both horns are activated simultaneously.

The horns are operated by pressing the sides of the steering wheel cover (around the Air Bag).

The horn circuit is protected by a special fuse and controlled by a specific relay located in the engine compartment control unit.

For safety reasons, the horns can be operated at any time, even when the key is turned to OFF (or removed).

Description of operation

The system for the horns is supplied through the horn relay T3 of the engine compartment control unit B1 from the direct line from the battery through the fuse F10 located in B1.

The relay coil is energized by an earth signal when one of the steering switches is closed; these switches are connected via the clock spring to the stalk unit H5. The relay thereby supplies the high tone horn P10 and the low tone horn P11.

Note

The connection for the horn contact via the clock spring is separate from the connection for the driver's Air Bag and any controls on the steering wheel (for the radio and telephone) D47 for these Wiring diagram E3510 CAR RADIO .

Wiring diagram

Components

Component location