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 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.
- End of diagnosis.