СИСТЕМА ECD ДАННЫЕ ФИКСИРОВАННОГО НАБОРА ПАРАМЕТРОВ

  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 air fuel ratio was lean or rich, as well as the other data recorded at the time of a malfunction.

      Tip:

      If it is impossible to duplicate the problem even though a DTC is stored, confirm the freeze frame data.

    • The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using an GTS, 5 separate sets of freeze frame data can be checked.

      A012I3ME77
      Table 1.
      *1 DTC stored
      *2 0.5 seconds
      *3 Freeze frame data which can be read

      • 3 data sets from before the DTC was stored

      • 1 data set from when the DTC was stored

      • 1 data set from after the DTC was stored

      • These data sets can be used to simulate the condition of the vehicle from around the time of the occurrence of the malfunction. The data may assist in identifying the cause of the malfunction, and in judging whether it was temporary or not.

  2. LIST OF FREEZE FRAME DATA

    Powertrain > Engine and ECT
    Tester DisplayMeasurement ItemDiagnostic Note
    Vehicle SpeedVehicle speedThe speed indicated on the speedometer.
    Target Idle Engine SpeedTarget idling speed-
    Engine SpeedEngine speed-
    Calculate LoadCalculated loadThe load calculated by the ECM.
    MAFMass air flow volume

    If approximately 0.0 gm/sec:

    • The mass air flow meter assembly power source circuit is open or shorted.

    • The VG circuit is open or shorted.

    • The E2G circuit is open.

    Atmosphere PressureAtmospheric pressure-
    MAPAbsolute pressure inside intake manifold-
    Coolant TempEngine coolant temperature

    If -40°C (-40°F), the sensor circuit is open.

    If 140°C (284°F), the sensor circuit is shorted.

    Intake AirIntake air temperature

    If -40°C (-40°F), the sensor circuit is open.

    If 140°C (284°F), the sensor circuit is shorted.

    Intake Air Temp (Turbo)Intake air temperature after intercooler

    If -40°C (-40°F), the sensor circuit is open.

    If 190°C (374°F), the sensor circuit is shorted.

    Engine Run TimeAccumulated engine running time-
    Initial Engine Coolant TempEngine coolant temperature at engine start-
    Initial Intake Air TempIntake air temperature at engine start-
    Battery VoltageBattery voltage-
    Glow Control Unit DutyGlow plug controller duty-
    Glow Indicator SupportedGlow indicator supported-
    Glow IndicatorGlow indicator-
    Eng Oil Press Switch ValveOil pressure switching valve assembly-
    Engine Oil PressureEngine oil pressure-
    Accel PositionAccelerator pedal sensor assembly-
    Accel Sens. No.1 Volt %Accelerator pedal position No. 1 output voltage-
    Accel Sens. No.2 Volt %Accelerator pedal position No. 2 output voltage-
    Target Throttle PositionTarget throttle position-
    Actual Throttle PositionActual throttle position-
    Diesel Throttle Learn StatusDiesel throttle learning status-
    Throttle Sensor Volt %Throttle position sensor output voltage-
    Throttle Motor DUTYThrottle actuator-
    Injection VolumeInjection volume-
    Inj. FB Vol. for IdleInjection feedback value for idle speed control-
    Inj Vol Feedback LearningInjection volume feedback learned value-
    Injection Feedback Val #1Injection volume correction for cylinder 1-
    Injection Feedback Val #2Injection volume correction for cylinder 2-
    Injection Feedback Val #3Injection volume correction for cylinder 3-
    Injection Feedback Val #4Injection volume correction for cylinder 4-
    Pilot 1 Injection PeriodPilot 1 injection period-
    Pilot 2 Injection PeriodPilot 2 injection period-
    Main Injection PeriodMain injection period-
    After Injection PeriodPost injection period-
    Pilot 1 Injection TimingPilot 1 injection timing-
    Pilot 2 Injection TimingPilot 2 injection timing-
    Main Injection TimingMain injection timing-
    After Injection TimingPost injection timing-
    Injector Memory ErrorState of injector related EEPROM information stored in ECMThis item is used for troubleshooting when DTC P062F is stored.
    Reju Pilot Quantity LearningPilot quantity learning prohibitionThe status is only displayed while performing "Pilot Quantity Learning".
    Pilot Quantity LearningPilot quantity learning statusThe status is only displayed while performing "Pilot Quantity Learning".
    Target Common Rail PressureTarget common rail pressure-
    Fuel PressFuel pressure-
    Fuel TemperatureFuel temperature-
    Fuel Return TempFuel return temperature-
    Target Pump SCV CurrentFinal pump current target value-
    Pump SCV Learning ValuePump current learned value-
    Pressure Discharge ValvePressure discharge valve operation prohibition-
    AF Lambda B1S1Lambda equivalent ratio-
    AFS Voltage B1S1Air fuel ratio sensor output voltage-
    AFS Current B1S1Air fuel ratio sensor output current-
    Target EGR PositionTarget EGR valve position-
    Actual EGR Valve Pos.Actual EGR valve position-
    EGR Motor Duty #1EGR motor duty ratio-
    EGR Close Lrn. Val.EGR valve fully closed position learned value-
    EGR Close Lrn. StatusEGR valve fully closed position learning status-
    EGR Operation ProhibitEGR operation prohibition-
    EGR Cooler Bypass VSVNo. 1 vacuum switching valve assembly (for EGR cooler) status-
    EGR Cooler Bypass PositionEGR cooler bypass position-
    Target Booster PressureTarget booster pressure-
    VN Turbo CommandVN turbo command-
    Actual VN PositionActual VN turbo position-
    VN Position Sensor OutVN position sensor output voltage-
    VN Motor DutyVN turbo motor duty-
    VN Close Learn ValueVN turbo fully closed position learned value-
    VN Close Learn StatusVN turbo fully closed position learning status-
    Exhaust Temperature B1S1 SupportedStatus of the exhaust temperature B1S1 supported-
    Exhaust Temperature B1S1Exhaust temperature sensor (B1S1)

    If 0°C (32°F), sensor circuit is open

    If 1000°C (1832°F), sensor circuit is shorted

    Exhaust Temperature B1S2 SupportedStatus of the exhaust temperature B1S2 supported-
    Exhaust Temperature B1S2No. 2 exhaust temperature sensor (B1S2)

    If 0°C (32°F), sensor circuit is open

    If 1000°C (1832°F), sensor circuit is shorted

    Exhaust Temperature B1S3 SupportedStatus of the exhaust temperature B1S3 supported-
    Exhaust Temperature B1S3No. 3 exhaust temperature sensor (B1S3)

    If 0°C (32°F), sensor circuit is open

    If 1000°C (1832°F), sensor circuit is shorted

    DPF Differential PressureDPF differential pressure-
    Catalyst Differential PressStandardized DPF differential pressure-
    Exhaust Fuel Addition FBExhaust fuel addition correction value-
    DPF Thermal DeteriorateDPF thermal deterioration-
    DPF No ActivateDPF operation-
    DPF PM BlockDPF PM block-
    Catalyst Memory ErrorEEPROM malfunction for catalystThis item is used for troubleshooting when DTC P062F is stored.
    PM Accumulation RatioPM accumulation ratio-
    Starter SignalStarter signal-
    Clutch SwitchClutch switch assembly-
    Reverse SwitchReverse switch-
    Stop Light SwitchStop light switch assembly-
    Shift Indication EnableShift indication enable-
    A/C SignalAir conditioning signal-
    Immobiliser CommunicationImmobiliser communication-
    Time after DTC ClearedCumulative time after DTC cleared-
    Distance from DTC ClearedAccumulated distance after DTC cleared-
    Warmup Cycle Cleared DTCWarmup cycles after DTC cleared-
    TC and TE1TC and TE1 terminals of DLC3-
    Engine Start TimeEngine start timeThis item is used for troubleshooting when DTC P1604 is stored.
    Engine Speed (Starter Off)Engine speed when starter offThis item is used for troubleshooting when DTC P1604 is stored.
    Starter CountNumber of times starter turned on after ignition switch ONThis item is used for troubleshooting when DTC P1604 is stored.
    Run Dist of Previous TripDistance driven during previous tripThis item is used for troubleshooting when DTC P1604 is stored.
    Glow Request Lighting TimeGlow indicator request lighting timeThis item is used for troubleshooting when DTC P1604 is stored.
    IG-ON TimeIgnition switch ON time before engine startThis item is used for troubleshooting when DTC P1604 is stored.
    MAF LowMass air flow lowThis item is used for troubleshooting when DTC P1608 is stored.
    Boost Pressure LowBoost pressure lowThis item is used for troubleshooting when DTC P1608 is stored.
    Common Rail Pressure LowCommon rail pressure lowThis item is used for troubleshooting when DTC P1608 is stored.
    Engine Coolant Temp HighEngine coolant temperature highThis item is used for troubleshooting when DTC P1608 is stored.
    MAF/Estimate MAF RatioIndicates the ratio of estimated intake air volume and the actual intake air volumeThis item is used for troubleshooting when DTC P1608 is stored.
    Rough Idle #1Rough idle status of cylinder 1This item is used for troubleshooting when DTC P1605 is stored.
    Rough Idle #2Rough idle status of cylinder 2This item is used for troubleshooting when DTC P1605 is stored.
    Rough Idle #3Rough idle status of cylinder 3This item is used for troubleshooting when DTC P1605 is stored.
    Rough Idle #4Rough idle status of cylinder 4This item is used for troubleshooting when DTC P1605 is stored.
    Electric Duty Feedback ValueElectric load feedback value-
    A/C Duty Feedback ValueA/C load feedback value-
    PS Duty Feedback ValuePower steering load feedback value-
    Idle Injection Volume (Min)Idle minimum injection volume-
    Electric Fan MotorElectric fan motors operation status-
    Immobiliser Fuel Cut HistoryStatus of the immobiliser fuel cut history-
    Shift SW Status (N,P Range) SupportedStatus of shift switch supported-
    Shift SW Status (N,P Range)Shift switch status-
    MT Down Shift IndicationManual transaxle down shift indicator status-
    MT Up Shift IndicationManual transaxle up shift indicator status-
    Stop&Start of Eng StateEngine status of stop and start system-