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 ProcedureClimate Control Unit Inspection [Manual Air Conditioner]
1. Remove the climate control unit with the connector connected..
2. Switch the ignition to ON.
3. Connect the negative (-) lead of the tester to the body ground.
4. By inserting the positive (+) lead of the tester into the climate control
unit connector, measure the voltage according to the ...
i-ACTIVSENSE
i-ACTIVSENSE is a collective term covering a series of advanced safety and
driver support
systems which make use of a Forward Sensing Camera (FSC) and radar sensors.
These
systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer ...
If the 12-volt battery is discharged
If the 12-volt battery in your Subaru Solterra becomes discharged,
specific procedures can be followed to restore power and restart the EV system safely.
These steps are designed to help you regain functionality in emergency situations
without causing damage to the vehicle’s electrical syste ...