Fail-Safe/Backup Function: Notes
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
The TCM is equipped with the diagnostic function to monitor the input signals from each sensor and output signals from the actuators. If an abnormality occurs in the signal system, the diagnostic function memorizes the abnormal symptoms and outputs a DTC.