1. Disconnect the negative battery cable..
2. Remove the front bumper..
3. Remove the horn..
4. Apply battery positive voltage and connect the ground as shown in the figure and verify the horn beeper sound operation.

If the beep sound cannot be verified, replace the horn.
Horn
Horn Removal/InstallationRear ABS Wheel Speed Sensor Inspection
Installation Visual Inspection
1. Inspect for the following:
If there is any malfunction, replace the part.
a. Excessive looseness or play of the rear ABS wheel-speed sensor
b. Deformation of the rear ABS wheel-speed sensor
c. Deformation or damage of the rear ABS sensor rotor
C ...
Front Seat Slide Adjuster Removal/Installation
WARNING:
Handling the front seats improperly can accidentally deploy the side air
bag, which may seriously injure you. Read air bag system service warnings and
cautions before handling the front seats..
CAUTION:
After removing a front seat, do not operate the slider leve ...
Bass Box Inspection
1. Disconnect the negative battery cable..
2. Disconnect the connector..
3. Verify the resistance between bass-box terminals.
If not within the specification, replace the bass-box.
Resistance
0.9—1.1 ohms
...