ECD 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 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.

    • A103809E77

      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.

      • 3 data sets before the DTC was stored.

      • 1 data set when the DTC was stored.

      • 1 data set after the DTC was stored.

      • These data sets can be used to simulate the condition of the vehicle 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

    Tester Display

    Measurement Item

    Diagnostic Note

    Vehicle Speed

    Vehicle speed

    The speed indicated on the speedometer.

    Target Idle Engine Speed

    Target idling speed

    -

    Engine Speed

    Engine speed

    -

    Calculate Load

    Calculated load

    The load calculated by the ECM.

    MAF

    Mass air flow volume

    If approximately 0.0 gm/s:

    • The mass air flow meter assembly power source

    • The VG circuit is open or shorted.

    • The E2G circuit is open.

    Atmosphere Pressure

    Atmospheric pressure

    -

    MAP

    Absolute pressure inside intakemanifold

    -

    Coolant Temp

    Engine coolant temperature

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

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

    Intake Air

    Intake air temperature

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

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

    Engine Run Time

    Accumulated engine running time

    -

    Initial Engine Coolant Temp

    Engine coolant temperature at engine start

    -

    Initial Intake Air Temp

    Intake air temperature at engine start

    -

    Battery Voltage

    Battery voltage

    -

    Pre Glow

    Pre-glow operation

    -

    After Glow

    After-glow operation

    -

    Glow Indicator Supported

    Glow indicator supported

    -

    Glow Indicator

    Glow indicator

    -

    Accel Position

    Accelerator pedal position sensor

    -

    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 Position

    Target throttle position

    -

    Actual Throttle Position

    Actual throttle position

    -

    Diesel Throttle Learn Status

    Diesel throttle learn status

    -

    Throttle Sensor Volt %

    Throttle position sensor output voltage

    -

    Throttle Motor DUTY

    Throttle actuator

    -

    Injection Volume

    Injection Volume

    -

    Inj. FB Vol. for Idle

    Injection feedback value for idle speed control

    -

    Inj Vol Feedback Learning

    Injection volume feedback learning value

    -

    Injection Feedback Val #1

    Injection volume correction for cylinder 1

    -

    Injection Feedback Val #2

    Injection volume correction for cylinder 2

    -

    Injection Feedback Val #3

    Injection volume correction for cylinder 3

    -

    Injection Feedback Val #4

    Injection volume correction for cylinder 4

    -

    Pilot 1 Injection Period

    Pilot 1 injection period

    -

    Pilot 2 Injection Period

    Pilot 2 injection period

    -

    Main Injection Period

    Main injection period

    -

    After Injection Period

    Post injection period

    -

    Pilot 1 Injection Timing

    Pilot 1 injection timing

    -

    Pilot 2 Injection Timing

    Pilot 2 injection timing

    -

    Main Injection Timing

    Main injection timing

    -

    After Injection Timing

    Post injection timing

    -

    Injector Memory Error

    State of injector related EEPROM information stored in ECM

    This item is used for troubleshooting when DTC P062F is stored.

    Reju Pilot Quantity Learning

    Pilot quantity learning prohibition

    The status is only displayed while performing "Pilot Quantity Learning".

    Pilot Quantity Learning

    Pilot quantity learning status

    The status is only displayed while performing "Pilot Quantity Learning".

    Target Common Rail Pressure

    Target common rail pressure

    -

    Fuel Press

    Fuel pressure

    -

    Fuel Temperature

    Fuel temperature

    -

    Fuel Return Temp

    Fuel return temperature

    -

    Target Pump SCV Current

    Final pump current target value

    -

    Pump SCV Learning Value

    Pump current learned value

    -

    Pressure Discharge Valve

    Pressure discharge valve operation prohibition

    -

    AF Lambda B1S1

    Lambda equivalent ratio

    -

    AFS Voltage B1S1

    Air fuel ratio sensor output voltage

    -

    AFS Current B1S1

    Air fuel ratio sensor output current

    -

    Target EGR Position

    Target EGR valve position

    -

    Actual EGR Valve Pos.

    Actual EGR valve position

    -

    EGR Motor Duty #1

    EGR motor duty ratio

    -

    EGR Close Lrn. Val.

    EGR valve fully closed position learned value

    -

    EGR Close Lrn. Status

    EGR valve fully closed position learning status

    -

    EGR Operation Prohibit

    EGR operation prohibition

    -

    EGR Cooler Bypass VSV

    Vacuum switching valve (for EGR bypass valve) status

    -

    EGR Cooler Bypass Position

    EGR cooler bypass position

    -

    Target Booster Pressure

    Target booster pressure

    -

    VN Turbo Command

    VN turbo command

    -

    Exhaust Temperature B1S1 Supported

    Status of the Exhaust Temperature B1S1 Supported

    -

    Exhaust Temperature B1S1

    Exhaust temperature sensor (B1S1)

    -

    Exhaust Temperature B1S2 Supported

    Status of the Exhaust Temperature B1S2 Supported

    -

    Exhaust Temperature B1S2

    No. 2 exhaust temperature sensor (B1S2)

    -

    Exhaust Temperature B1S3 Supported

    Status of the Exhaust Temperature B1S3 Supported

    If this item displays "Unsupp", a fixed value is displayed for "Exhaust Temperature", as exhaust gas temperature sensors are not equipped on the vehicle.

    Exhaust Temperature B1S3

    -

    -

    DPF Differential Pressure

    DPF differential pressure

    -

    Catalyst Differential Press

    Standardized DPF differential pressure

    -

    Exhaust Fuel Addition FB

    Exhaust fuel addition correction value

    -

    DPF Thermal Deteriorate

    DPF thermal deterioration

    -

    DPF No Activate

    DPF operation

    -

    DPF PM Block

    DPF PM block

    -

    Catalyst Memory Error

    EEPROM malfunction for catalyst

    This item is used for troubleshooting when DTC P062F is stored.

    Sulfur Accumulation Ratio

    Sulfur accumulation ratio

    -

    PM Accumulation Ratio

    PM accumulation ratio

    -

    Starter Signal

    Starter signal

    -

    Neutral Position SW Signal

    Neutral position switch signal

    -

    Stop Light Switch

    Stop light switch

    -

    A/C Signal

    Air conditioning signal

    -

    Immobiliser Communication

    Immobiliser communication

    -

    Time after DTC Cleared

    Cumulative time after DTC cleared

    -

    Distance from DTC Cleared

    Accumulated distance after DTC cleared

    -

    Warmup Cycle Cleared DTC

    Warmup cycles after DTC cleared

    -

    TC and TE1

    TC and TE1 terminals of DLC3

    -

    Engine Start Time

    Engine start time

    This item is used for troubleshooting when DTC P1604 is stored.

    Engine Speed (Starter Off)

    Engine speed when starter off

    This item is used for troubleshooting when DTC P1604 is stored.

    Starter Count

    Number of times starter turned on after ignition switch ON

    This item is used for troubleshooting when DTC P1604 is stored.

    Run Dist of Previous Trip

    Distance driven during previous trip

    This item is used for troubleshooting when DTC P1604 is stored.

    Glow Request Lighting Time

    Glow request lighting time

    This item is used for troubleshooting when DTC P1604 is stored.

    IG-ON Time

    Ignition switch ON time before engine start

    This item is used for troubleshooting when DTC P1604 is stored.

    MAF Low

    Mass air flow low

    This item is used for troubleshooting when DTC P1608 is stored.

    Boost Pressure Low

    Boost pressure low

    This item is used for troubleshooting when DTC P1608 is stored.

    Common Rail Pressure Low

    Common rail pressure low

    This item is used for troubleshooting when DTC P1608 is stored.

    Engine Coolant Temp High

    Engine coolant temperature high

    This item is used for troubleshooting when DTC P1608 is stored.

    MAF/Estimate MAF Ratio

    Indicates the ratio of estimated intake air volume and the actual intake air volume

    This item is used for troubleshooting when DTC P1608 is stored.

    Rough Idle #1

    Rough idle status of cylinder 1

    This item is used for troubleshooting when DTC P1605 is stored.

    Rough Idle #2

    Rough idle status of cylinder 2

    This item is used for troubleshooting when DTC P1605 is stored.

    Rough Idle #3

    Rough idle status of cylinder 3

    This item is used for troubleshooting when DTC P1605 is stored.

    Rough Idle #4

    Rough idle status of cylinder 4

    This item is used for troubleshooting when DTC P1605 is stored.

    Electric Duty Feedback Value

    Electric load feedback value

    -

    A/C Duty Feedback Value

    A/C load feedback value

    -

    PS Duty Feedback Value

    Power steering load feedback value

    -

    Idle Injection Volume (Min)

    Idle minimum injection volume

    -

    Battery Current

    Battery current

    Charging control service data

    Battery Temperature

    Battery temperature

    Charging control service data

    Alternator Output Duty

    Generator output duty ratio

    Electricity generated by alternator is output through duty ratio charging control service data

    Alt Vol - Non Active Test

    Request voltage when regulator not under forced activation

    Alternator regulator output voltage:

    When performing Active Test, value is 0 V

    Alt Vol - Active Test

    Request voltage when regulator under forced activation

    Charging control service data:

    When not performing Active Test, value is 0 V

    Electric Fan Motor

    Electric fan motors operation status

    -

    Immobiliser Fuel Cut History

    Status of the immobiliser fuel cut history

    -

    Received MIL from ECT

    MIL status from ECT

    -

    Shift Position Sig from ECT

    Shift position from ECT

    -

    A/T Oil Temp from ECT

    ATF temperature from ECT

    -

    SPD (NO)

    Output shaft speed

    -

    ECT Lock Up

    ECT lock-up status

    -

    Shift SW Status (P Range)

    Park/neutral position switch status

    -

    Kick Down Switch Status

    Kick down switch status

    -

    Pattern Switch (PWR/M)

    Pattern select switch (SPORT) status

    -

    Shift SW Status (R Range)

    Park/neutral position switch status

    -

    Shift SW Status (N Range)

    Park/neutral position switch status

    -

    Shift SW Status (N,P Range) Supported

    Status of shift switch supported

    -

    Shift SW Status (N,P Range)

    Shift switch status

    -

    Sports Shift Up SW

    Sports shift up switch status

    -

    Sports Shift Down SW

    Sports shift down switch status

    -

    Sports Mode Selection SW

    Sports mode select switch status

    -

    Shift SW Status (D Range)

    Park/neutral position switch status

    -

    A/T Oil Temperature 1

    ATF temperature sensor value

    -

    MT Down Shift Indication

    Manual transaxle down shift indicator status

    -

    MT Up Shift Indication

    Manual transaxle up shift indicator status

    -