Freeze frame data

For the freeze frame data, only a part of the DTC data is stored.
If there are several malfunctions in the engine control system, the data for the malfunction which occurred initially is stored. After that, if a misfire or malfunction in the fuel injection control occurs, the misfire or malfunction data in the fuel injection control overwrites the previously stored data. However, if the previously stored freeze frame data is due to a misfire or malfunction in the fuel injection control, the data is not overwritten.