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

Procedure 

-- Connect the scan tool.

-- Switch the ignition to the "ON" position.

-- Select "Diagnostic Mode 03 - Interrogating Fault Memory ".

-- Then select "Reset/Delete Diagnostic Data ".

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

-- Switch the ignition off.

-- End of diagnosis.