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 ProcedureRear Bumper Removal/Installation
4SD
1. Disconnect the negative battery cable..
2. Remove the rear combination light..
3. Remove the fastener A and screw B.
4. Remove the rear splash shield..
5. Remove the screws C.
6. Remove the bolts D.
7. Affix the protective tape to the position shown in the figure.
...
Car Navigation System
Outline
The car-navigation system displays point-of-origin and road guidance maps
via the audio unit display and provides guidance and information to the desired
point of destination.
NOTE:
For the car-navigation system operation, refer to the owner's manual.
...
Driving the vehicle
To ensure safe, smooth, and efficient operation of the Subaru Solterra,
it is essential to follow the recommended driving procedures and precautions outlined
below.
Driving procedure
■ Before starting the EV system
Before activating the Subaru Solterra EV system, always confirm that the cha ...