Outline Of Diagnosis
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
- Detect short circuit to power supply or open circuit of the shift-up fluid pressure control solenoid drive circuit.
- Judge as NG when an abnormal signal is received from the solenoid driver IC of the shift-up fluid pressure control solenoid drive circuit.