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/InstallationRear Side Frame Removal [Panel Replacement]
Symbol Mark
Removal Procedure
NOTE:
When drilling the 35 locations indicated by (A) and 4 locations indicated
by (C) shown in the figure, do not drill a hole all the way through or there
could be a problem when installing the new part.
1. Drill the 35 locations indicated by ...
Driver Side Air Bag Module [Standard Deployment Control System]
Purpose
When the driver-side air bag module receives an impact from a frontal or
frontal offset collision, the operation (deployment) of the air bag mediates
the impact to the head and face of the driver.
Function
When the driver-side air bag module receives an impact from ...
Rain Sensor
Outline
The rain sensor detects the amount of rainfall and calculates the wiper operation
speed, and outputs a windshield wiper control signal to the front body control
module (FBCM) to perform automatic wiper operation (auto wiper system) according
to the amount of rainfall.
...