Inspection Procedure 10: TCL/ASC System Dose Not Operate: Comment
WARNING: This page is about a different car, the 2009 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.
The fail-safe function is probably canceling TCL/ASC system. In this case, scan tool MB991958 can be used to Retest each system by checking the diagnostic trouble codes.