Freeze Frame Data

Conditions at time a malfunction is detected will be stored in PCM as freeze frame data. While multiple DTCs may be recorded, only one freeze frame is recorded. DTCs are assigned a priority with fuel and misfire codes having highest priority. Non-emission related DTCs have lowest priority. DTC with highest priority will be one recorded in freeze frame. Freeze frame records are cleared when DTCs are cleared. Freeze frame data recorded are:

• Engine Coolant Temperature.
• Engine RPM.
• Vehicle Speed.
• Long Term Fuel Trim (Displayed As Percent).
• Short Term Fuel Trim (Displayed As Percent).
• Fuel Control Condition (Open Or Closed Loop).
• Calculated Load Value (Displayed As Percent).
• DTC During Data Recording.