Storing and Erasing Failure Records Data

When a PCM DTC sets, the PCM does several things including saving useful data and input parameter information for a service diagnosis. This information is referred to as the Freeze Frame/Failure Records. You will see references to the Freeze Frame/Failure Records in many PCM. DTC diagnostic tables because this information can be useful in pinpointing a problem even if the problem is not present when the vehicle is in the service bay.

The Freeze Frame/Failure Records data may be retrieved through the DTC menu on the scan tool. If more than one DTC is set review the odometer or the engine run time data located in the Freeze Frame/Failure Records info to determine the most current failure.

Keep in mind that once the Freeze Frame or the Failure Record is selected, the parameter and input data displayed will look just like the normal PCM data except the parameters will not vary since stored data is being displayed.