1. Disconnect the negative battery cable..
2. Remove the front bumper..
3. Remove the horn..
4. Apply battery positive voltage to horn terminal A, and connect the horn retaining bolt to ground as shown in the figure, and then verify that the horn sounds.

If the horn does not sound, replace the horn.
Horn
Horn Removal/InstallationDrive Belt Auto Tensioner Inspection
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
If the rubber part of the drive belt auto tensioner is damaged by a screwdriver
or other tool, oil in the hydraulic pressure unit could leak and the tens ...
Evaporator
Purpose
The evaporator cools the passing air.
Function
The evaporator vaporizes the atomized refrigerant flowing internally, and
the air passing through the evaporator is cooled by the release of latent heat.
The moisture in the air is condensed at this time and dehumidifie ...
Tachometer
Purpose
The tachometer notifies the driver of the engine speed.
Function
The instrument cluster controls the tachometer needle based on the engine
speed signal from the PCM and displays the engine speed per minute.
Construction
An analog needle display tachometer ...