Diagnostic Aids
Use the Freeze Frame and/or Failure Records data in order to locate an intermittent condition. If the DTC cannot duplicated, the information included in the Freeze Frame and/or Failure Records data can help in determining how many miles since the DTC set. The Fail Counter and Pass Counter can also help in determining how many ignition cycles the diagnostic reported a pass and/or a fail. Operate the vehicle within the same freeze frame conditions including those for RPM, for engine load, for vehicle speed, for temperature, and for others. This will isolate when the DTC failed.