Check of Freeze Frame Data

DIAGNOSIS FUNCTION

CHECK OF FREEZE FRAME DATA

The freeze frame data can be checked by using the scan tool (How to Cope with Intermittent Malfunction How to Cope With Intermittent Malfunctions).

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





NOTE:
*: If a failure occurs to both the ASC-ECU and ETACS-ECU, 0000 mile or FFFF mile is displayed on the scan tool MB991958.