Operation CHARM: Car repair manuals for everyone.

OBD-II Freeze Frame Data

OBD-II FREEZE FRAME DATA [AJ]
- This is the technical data which indicates the engine's condition at the time of the first malfunction. This data will remain in the memory even if another emission-related DTC is stored, with the exception of Misfire or Fuel System DTCs. Once freeze frame data for Misfire or Fuel System DTC is stored, it will overwrite any previous data and the freeze frame will not be overwritten again.