Diagnostic Item 20: Diagnose when the scan tool cannot receive the data sent by ACC/FCM-ECU. < vehicles with ACC >: Function
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 diagnostic result demonstrates that "the scan tool (M.U.T.-III) cannot receive the sent data from the ACC/FCM-ECU" when the scan tool (M.U.T.-III) checks the periodically sent data from each ECU and cannot receive the ACC/FCM-ECU data only.