Because the antenna system is equipped with a capacitor, the continuity cannot be checked. Therefore proceed the following simple inspection.
Turn the AM radio on.
Tune to the frequency that there is no broadcast and you will hear a buzzing sound.
Turn a work light on and shake it around the antenna rod. (around 10—20 mm {0.40—0.78 in})
CAUTION:
Use a fluorescent light type for the inspection. Accurate diagnostic cannot be done with a different type of light.

If a whirring sound from the speaker synchronized to the work light movement is confirmed, the antenna system is normal.
Coil Antenna Removal/Installation
Entertainment Personalization Features Setting ProcedureAudio Unit Removal/Installation
Without Display
CAUTION:
When installing the audio unit, make sure that the wiring harness and antenna
feeder are not caught between the unit and dashboard. If the wiring harness
or the antenna feeder is caught between the unit and dashboard, it may cause
malfunctions.
Pres ...
Immobilizer system
The Subaru Solterra is equipped with advanced key technology featuring
integrated transponder chips that communicate with the vehicle’s onboard system,
ensuring that the EV system can only be started with a properly registered key.
This significantly enhances protection against unauthorized ...
Underbody Maintenance
Road chemicals and salt used for ice and
snow removal and solvents used for dust
control may collect on the underbody. If
not removed, they will speed up rusting
and deterioration of such underbody parts
as fuel lines, frame, floor pan, and exhaust
system, even though these parts may be
coate ...