Diagnostic Item 20: Diagnose When The Scan Tool (M.U.T.-IIISE) Cannot Receive The Data Sent By ECM: Function

The diagnostic result demonstrates that "the scan tool (M.U.T.-IIISE) cannot receive the sent data from the ECM" when the scan tool (M.U.T.-IIISE) checks the periodically sent data from each ECU and cannot receive the ECM data only.