Diagnostic Mode 04 - Reset/Delete Diagnostic Data

Diagnostic Mode 04 is used to reset or delete the following stored information:

All emission related malfunctions in the DTC memory.
The operating conditions at which a malfunction was stored will be reset.
All adaptation values.
The test results of all diagnostic functions.

NOTE:

Depending on scan tool and protocol used, diagnostic mode 04 and the information provided may be referred to by a different name.

Procedure

Connect the scan tool.
Switch the ignition to the "ON" position.
Select "Diagnostic Mode 03: Interrogating fault memory ".
Then select "Mode 4: Reset/delete diagnostic data".

The scan tool will display: "Diagnostic data are being erased".

Switch the ignition off.