Freeze Frame

Freeze Frame is an element of the diagnostic management system that stores various vehicle information at the moment an emissions-related fault is stored in the PCM memory. Freeze Frame information is also stored when the MIL is commanded On. The Freeze Frame data is useful in identifying the cause of an emission-related fault. The Freeze Frame data is accessed by the scan tool and can be saved with the Capture Data feature. Refer to Storing And Erasing the Freeze Frame Data in Powertrain Control Module Diagnosis for more detailed information.A misfire fault (DTC P0300-P0304) or a fuel trim fault (DTC P0171 and P0172) will replace the data in the 1st frame of Freeze Frame data because these DTCs have a higher priority under the OBD 2 rules.