Test the horn by connecting battery voltage to the 1 terminal and ground the 2 terminal.
The horn should make a sound. If the horn fails to make a sound, replace it.
Horn Relay Inspection
1. |
Remove the horn relay (A) from the engine room relay box. |
2. |
There should be continuity between the No.30 and No.87
terminals when power and ground are connected to the No.85 and No.86
terminals. |
3. |
There should be no continuity between the No.30 and No.87 terminals when power is disconnected. 

|
1. |
Remove the radiator grill upper gide.
|
2. |
Remove the mounting nut and disconnect the horn connector, then remove the high pitch horn (A) and low pitch horn (B). 
|
1. |
Connect the horn connector, then reassemble the horn. |
2. |
Reassemble the radiator grill upper gide. |
Operate the horn, and adjust the tone to a suitable level by turning the adjusting screw.
After adjustment, apply a small amount of paint around the screw head to keep it from loosening. |

Component Location
1. Horn switch2. Horn relay (Engine room compartment)3. Horn - High pitch4. Horn - Low pitch5. Clock spring
...
See also:
Fuel Pressure Control Valve (FPCV) Description and Operation
Description
Fuel Pressure Regulator Valve is installed on the high
pressure fuel pump and controls fuel flow flowing into the injectors in
accordance with the ECM signal calculated based on var ...
Tire Repair procedures
•
Using tires and wheel other than the recommended sizes could
cause unusual handling characteristics and poor vehicle control,
resulting in a serious accident.
Tire We ...
Climate control air filter
The climate control air filter installed behind the glove box filters the dust
or other pollutants that come into the vehicle from the outside through the heating
and air conditioning system.
If ...