Diagnostic Function
DIAGNOSIS FUNCTIONABS-ECU has the following functions for easier system checks. The following items can be diagnosed using scan tool.
^ Diagnostic trouble code set (Refer to Diagnostic Trouble Code Descriptions.)
^ Service data output (Refer to Data List Reference Table).
^ Actuator test (Refer to Actuator Test Reference Table).
^ Freeze frame data output (Refer to Diagnostic Function).
CHECK OF FREEZE FRAME DATA
The freeze frame data can be checked by using the scan tool.
When detecting fault and storing the DTC, the ECU connected to CAN bus line obtains the data before the determination of the DTC and the data when the DTC is determined, and then stores the ECU status of that time. By analyzing each data from scan tool, the troubleshooting can be performed more efficiently. The displayed items are as the table below.
Display item list