The signal is located behind the front bumper on the left side and is attached to the body via a bracket.
Disconnect the wire terminal from the negative terminal of the battery.
From below the car

using a 12 mm socket, unscrew the horn mounting bolt and remove the horn.

By pressing the connector lock, we disconnect the connector from the horn.
The sound signal is adjusted at the factory.
To adjust the sound of the signal, we clamp the signal bracket in a vice, supply power from the battery to the signal terminals using wires

and turning the adjusting screw with a Phillips screwdriver, we achieve a loud and clear sound of the signal. Otherwise, we replace the signal.
We install the sound signal in the reverse order.
(The source of the article is available on the website «CHEVYMAN.RU»)
