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Freeze Frame Data

Freeze frame data records engine conditions when a misfire (DTC P0300-P0304) or fuel trim malfunction (DTC P0171 and P0172) or other malfunction (1st malfunction only), is detected. Freeze frame data records engine conditions (fuel system, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) when a malfunction is detected. When trouble shooting, it is useful for determining whether vehicle was running or stopped, engine was warmed up or not, air-fuel ratio was lean or rich, etc. at time of malfunction.

If trouble shooting priorities for multiple DTCs are given in applicable DTC chart, these should be followed. If no instructions are given, trouble shoot DTCs according to following priorities:

  1. DTCs other than fuel trim malfunction (DTCs P0171 and P0172) and misfire (DTCs P0300-P0304).
  2. DTCs other than fuel trim malfunction (DTCs P0171 and P0172).
  3. Misfire (DTCs P0300-P0304).

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