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 ProcedureDigital key
In the Subaru Solterra, a compatible smartphone can function as a
fully integrated replacement for the traditional electronic key when the dedicated
Digital Key App is installed. This advanced feature also allows secure sharing of
access with family members or trusted individuals through the s ...
Climate Control Unit Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper panel.
b. Shift lever knob (MTX).
c. Selector lever knob (ATX).
d. Shift panel.
e. Side wall.
f. Console.
g. Center panel.
h. Audio unit.
3. Remove in the order indicated in the table.
...
Precaution [ABS]
1. Any one or a combination of the ABS warning and brake system warning lights
illuminates even when the system is normal.
Warning lights that may illuminate and/or flash
Cases in which the light may illuminate
Conditions in which the light will go ou ...