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/InstallationChild restraint system fixed with a seat belt
In the Subaru Solterra, a child restraint system for infants or small children
must be properly secured using the lap portion of the lap/shoulder seat belt. Correct
installation is essential to ensure that the system provides effective protection
in all driving conditions.
■ Installing chil ...
Accessory Sockets
Only use genuine Mazdaaccessories or the
equivalent requiring no greater than 120 W
(DC 12 V, 10 A).
Type A
The accessory sockets can be used
regardless of whether the ignition is on or
off.
Type B *
The ignition must be switched to ACC or
ON.
With CD Player
Without CD Player
...
Rear Door Module Panel Removal/Installation
1. Fully open the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Rear door trim.
b. Rear door speaker.
c. Rear power window motor.
d. Rear door quarter glass.
e. Rear door glass.
4. Remove the clips securing the rear door wiring harness ...