1. Measure the temperature around the passenger compartment temperature sensor and measure the resistance between passenger compartment temperature sensor terminals B and D.

If the characteristics of the passenger compartment temperature sensor are not as shown in the graph, replace the passenger compartment temperature sensor.
2. Connect battery positive voltage to passenger compartment temperature sensor terminal A and connect terminal C to ground to verify fan operation.

If there is any malfunction, replace the passenger compartment temperature sensor.
Manifold Absolute Pressure (Map) Sensor/Boost Air Temperature Sensor Removal/Installation
[Mzr 2.3 Disi Turbo]
Passenger Compartment Temperature Sensor Removal/Installation [Full Auto Air
Conditioner]On Board Diagnostic System PID/Data Monitor Inspection [FS5 A EL]
NOTE:
The PID data screen function is used for monitoring the calculated value
of input/output signals in the module. Therefore, if the monitored value of
the output parts is not within the specification, it is necessary to inspect
the monitored value of input parts corresponding to ...
Oil Cooler Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Parking Support Brake function (static objects front and rear of the vehicle/static
objects around the vehicle)
Within the Subaru Solterra, the Parking Support Brake system continuously
monitors the driving path for stationary obstacles such as walls or fixed structures.
If the sensors detect a static object and the system determines that a collision
could occur — for example due to unintended acceler ...