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 ProcedureIf the electronic key does not operate properly
If communication between the electronic key and the Subaru Solterra
is disrupted, or if the key cannot be used due to a depleted battery, the smart
key system and wireless remote functions will be unavailable. In such situations,
the Subaru Solterra can still be accessed and started by followi ...
Trunk Lid Opener Cable Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front seat (LH)(See FRONT SEAT REMOVAL/INSTALLATION.)
b. Front scuff plate (LH).
c. Rear scuff plate.
d. B-pillar lower trim.
e. Rear seat cushion.
f. Rear seat back.
g. Tire house trim (LH).
h. Trunk end ...
Key Reminder Switch Inspection
1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR
2.0, MZR 2.5].)(See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)(See BATTERY
REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
2. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION.)
3. Disconnect the ...