Failure Records

When a diagnostic test fails, the Powertrain Control Module (PCM) stores the information as failure records data. Unlike freeze frame data, failure records are stored for multiple Diagnostic Trouble Codes (DTC) or non-emission related DTCs (DTCs that do not illuminate the MIL). The failure records information is updated the first time the test fails during each ignition cycle. Freeze frame/failure records data may be retrieved by using a 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. The stored information will look like normal PCM data. Always capture freeze frame/failure records data information with the scan tool before proceeding with any diagnosis. Loss of this data may prevent accurate diagnosis of an intermittent condition.