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.
Judge as NG when the CPU operation is abnormal.
Diagnosis 1-1 and 1-2: Instruction check
Diagnosis 2: Software flow check
Diagnosis 3: Software monitor check
Diagnosis 4: If the output IC operation is abnormal
Diagnosis 5: CAN register check
Diagnosis 6: Control module function check
Diagnosis 7: Self check
Diagnosis 8: History monitoring
Diagnosis 9: Voltage monitoring