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 the 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 on.
-- Select Diagnostic Mode 03: Interrogating fault memory.
-- Then select Mode 4: Reset/delete diagnostic data.
The scan tool will display "Diagnostic data being erased".
-- Switch the ignition off.