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 ProcedureBrake Fluid Pressure Sensor Inspection
1. Switch the ignition to off.
2. Install the SSTs to the master cylinder (secondary side) as shown in
the figure.
NOTE:
When installing the SST (49 D043 0A0) to the master cylinder, use
a commercially available flare nut wrench (flare nut across flat 12 mm {0.47
in}).
...
Garage door opener
The integrated HomeLink system in the Subaru Solterra allows seamless
programming and control of various devices such as garage doors, entry gates, home
lighting, security systems, and other compatible automation equipment, providing
enhanced convenience and smart functionality directly from y ...
Back Up Light Switch Removal/Installation [A26 M R]
1. Disconnect the negative battery cable.
2. Disconnect the back-up light switch connector.
3. Remove the aerodynamic under cover No.2..
4. Remove the back-up light switch with the gasket.
5. Install a new gasket and the back-up light switch to the transaxle case.
Tightening torque ...