Diagnostic Mode 04 - Erase DTC Memory: Notes

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
• - Read current system 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
• - Time with MIL on
• - Time after erasing the DTC memory
• - Misfire counter