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 ProcedureWhen charging cannot be carried out
If charging of the Subaru Solterra does not begin even after correctly
following the standard procedure, carefully review each of the following checks.
If any notification appears on the multi-information display, it should be used
as the primary reference for identifying the issue.
When char ...
Antenna Feeder No.7 Inspection
1. Disconnect the negative battery cable..
2. Remove the liftgate upper trim..
3. Disconnect the connector A and B..
4. Verify that the continuity between antenna feeder No.7 terminals is as indicated
in the table.
If not as indicated in the table, replace antenna feeder No.7.
...
If your vehicle overheats
If the message "EV System overheated Output power reduced" appears
on the multi-information display of your Subaru Solterra, it indicates that the
system temperature has risen beyond optimal limits and immediate action is required
to prevent potential damage.
NOTICE
■ Cooling system coolan ...