Storing and Erasing Failure Records Data

When a PCM DTC sets, the PCM does several things. Among them is to save useful data and input parameter information for service diagnosis. This information is referred to as Freeze Frame, Failure Records. You will see references to these 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.

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

Keep in mind that once Freeze Frame or 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 the scan tool is displaying stored data.