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 Seat Back Removal/Installation
CAUTION:
When removing or putting in the rear seat, contact with the surrounding areas
of the vehicle could cause scratches and damage. When removing or putting in
the rear seat, always use two or more persons to perform the work and be careful
not to scratch or damage the rear seat ...
Car Navigation System
Outline
The car-navigation system displays point-of-origin and road guidance maps
via the audio unit display and provides guidance and information to the desired
point of destination.
NOTE:
For the car-navigation system operation, refer to the owner's manual.
...
Rear Bumper Disassembly/Assembly
1. Disassemble in the order indicated in the table.
1
Screw
2
Reflector
3
Rear bumper face
2. Assemble in the reverse order of disassembly. ...