Audi — TERMINALS OF ECU

agn DISPLAY ORIGINAL LANGUAGE MEANING ACTION TO BE TAKEN good Good (normal) No DTC are detected in both "System Check Mode" and "Diagnostic Memory Mode". - nCon No connection System recognized component when it was registered, but component gives no response to "Diagnostic Mode ON Request". Check power source circuit and communication circuit of component indicated by component code (physical address). ECHn Exchange One or more DTCs for "Exchange" are detected in either "System Check Mode" or "diagnostic Memory Mode". Go to detailed information mode to check trouble area on DTC list.

CHEC Check When no DTCs are detected for "Exchange", one or more DTCs for "Check" are detected in either "System Check Mode" or "Diagnostic Memory Mode". Go to detailed information mode to check trouble area on DTC list. OLd Old version Old DTC application is identified and DTC is detected in either "System Check Mode" or "Diagnostic Memory Mode". - nrES No response Device gives no response to "System Check Result Request" or "Diagnostic Memory Request". Check power source circuit and communication circuit of component indicated by component code (physical address). (3) To perform the service check again, press the preset switch "1".

(e) Detailed information mode (when displaying the DTC for a trouble component) (1) With "CHEC" or "ECHn" being displayed, press the preset switch "2" to go to the detailed information mode. (2) Press the "TUNE TRACK" switch to display the "System Check Result (SYS)" and "Diagnostic Memory Response (CODE)". cardi