Diagnostic Trouble Code (DTC) Memory, Checking (VAS 5051)

Diagnostic Mode 04 - Erase DTC Memory

Diagnostic Mode 04 makes it possible to erase the DTC memory and to reset all emissions-related diagnostic data. In that way, all faults in the DTC memory in the ECM and TCM are erased. The adaptation values may also be reset.

Emissions-related diagnostic data includes (as applicable):
- MIL Status
- Number of DTCs
- Readiness Bits
- Confirmed DTCs
- Pending DTCs
- DTC that belongs to freeze frame
- Freeze frame data
- Test results of specific diagnostic functions
- Distance driven with MIL ON
- Number of Warm-Up Cycles after erasing the DTC memory
- Distance driven after erasing the DTC memory
- Misfire counter

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

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

The diagnostic tester will display: "Diagnostic data are being erased".
- Switch the ignition off.

End of procedure