Diagnostic Mode 04 - Erase DTC Memory

Diagnostic Mode 04 makes it possible to erase the DTC memory and to reset all emission 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.

Emission 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
• - Monitor Status
• - 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
• - Memory-delete after fault
• - Misfire counter

Procedure 

-- CONNECT: Scan Tool

-- IGNITION: ON

-- SELECT: Mode 03

-- SELECT: Mode 4 Reset/delete diagnostic data

-- IGNITION: OFF

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