Freeze frame data when DTC is set
- Retrieve the following FFD, excluding FDMTIME, FDMIAT, FDMECTS and FDMTP. Retrieve the FFD for FDMTIME, FDMIAT, FDMECTS and FDMTP from PID/DATA MONITOR & RECORD.
NOTE:
- FFD is a snapshot of the conditions that are present when DTC or PENDING CODE is stored. Once FED is stored, this data will remain in PCM memory even if another emission related DTC or PENDING CODE is stored additionally, except for Misfire or Fuel System related DTC or PENDING CODE. Once Misfire or fuel System related DTC or PENDING CODE is stored, it will overwrite any previous data and the FFD will not be further overwritten. When DTC associated with the FFD is erased or PCM< is reset, new FFD can be stored.
Courtesy of MAZDA MOTORS CORP.