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Horn

Horn

Two horns of the trumpet type are located behind the grille under the radiator cross-member. The horn switch is located in the centre of the steering wheel.

The horns are tuned to different frequencies. The horn marked H is high frequency and the one marked L is low frequency.



The horn switch (336b) is connected to SID pins 3 and 18. When the horn switch is pressed, SID grounds pin 17 and the relay (68) operates. Power +30 is fed from fuse 1 through the relay (68) to both horns (40).

The horn is also used for confirmation of “TSL”-locking (Theft Security Lock) of the car. The SID unit receives information via the bus from TWICE and the horn is activated.

Diagnosis

For fault diagnosis help see