CHARGING SYSTEM FREEZE FRAME DATA


  1. DESCRIPTION

    The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

    Tech Tips


    • If it is impossible to reproduce the symptoms even though a DTC is stored, confirm freeze frame data.

    • Freeze frame data is available in long and short forms.

  2. LIST OF FREEZE FRAME DATA


    1. According to the display on the GTS, read the freeze frame data.


      Powertrain > Engine
      Tester Display
      Battery Voltage
      Alternator Output Duty Ratio
      Alternator Voltage - Non Active Test
      Voltage of Alternator