Diagnostic Aids

Use FREEZE FRAME and/or FAILURE RECORDS data in order to locate an intermittent condition. If you cannot duplicate DTC, information included in the Freeze Frame and/or Failure Records data may aid in determining the number of miles since DTC set. FAIL COUNTER and PASS COUNTER can also aid in determining number of ignition cycles that diagnostic reported a pass and/or fail. Operate the vehicle within same FREEZE FRAME conditions (such as RPM, engine load, vehicle speed, temperature, etc). This will isolate when DTC fails.