1. Disconnect the negative battery cable..
2. Disconnect the connector..
3. Verify the resistance between bass-box terminals.

If not within the specification, replace the bass-box.

0.9—1.1 ohms
Auxiliary Jack/Usb Port Removal/Installation
Bass Box Removal/InstallationElectronic key battery
If the electronic key battery of your Subaru Solterra becomes depleted,
it should be replaced promptly to ensure uninterrupted operation of all key functions.
■ If the key battery is depleted
When the battery inside the Subaru Solterra electronic key weakens or fully discharges,
you may noti ...
Digital inner mirror
In the Subaru Solterra, the Digital inner mirror is an advanced visibility
system that utilizes a rear-mounted camera to project a real-time video image onto
the mirror display, significantly enhancing rearward visibility in various driving
conditions.
The Subaru Solterra Digital inner mirr ...
Boost Air Temperature Sensor Inspection [Mzr 2.3 Disi Turbo]
Resistance Inspection
NOTE:
Because the boost air temperature sensor is integrated in the MAP sensor,
replacing the boost air temperature sensor includes replacement of the MAP sensor/boost
air temperature sensor.
1. Remove the battery cover..
2. Disconnect the negative batter ...