Display Of Engine Freeze Frame Data
NOTE:
- ECM updates the freeze frame data every 0.5 seconds, and always keeps the last three records. Time-series freeze frame data includes the last three freeze frame data and the freeze frame data when the DTC is detected.
- In the time-series freeze frame data, the following freeze frame data are displayed: «Detect», «1 times past», «2 times past», and «3 times past».
- Time lag between the freeze frame data of «Detect» and the freeze frame data of «1 block before» changes within the range of 0 - 0.5 seconds. This is because the freeze frame data of «Detect» is recorded when the DTC is actually detected, while the freeze frame data of «1 block before» is updated every 0.5 seconds.
- When more than one DTCs are recorded, the time-series freeze frame data is recorded only for the first-detected DTC, and for the next DTC, just the freeze frame data of «Detect» is recorded. And for the subsequent DTCs, no freeze frame data is recorded.
- When performing diagnosis, you can utilize the time-series freeze frame data to guess the vehicle status when the DTC was detected.
- For detailed operation procedures, refer to "Application help".
- A list of the support data is shown in the following table.
- On «Start» display, select «Diagnosis».
- On «Vehicle selection» display, input the vehicle information and select «Confirmed».
- On «Main Menu» display, select «Each System».
- On «Select System» display, select «Engine Control System» and then select «Enter».
- On «Select Function» display, select «Data Monitor».
- Select «FFD» of the DTC displayed in «DTC».
| Display | Contents | Remarks |
|---|---|---|
| Engine Speed | Value calculated from crankshaft position sensor output value. | rpm |
| Mass Air Flow | Value calculated from air flow sensor output value. | g/s or lb/m |
| Vehicle Speed | Value calculated from vehicle speed sensor output value. | km/h or MPH |
| Throttle Opening Angle | Throttle valve opening angle (in percentage) calculated from throttle position sensor output value. | % |
| Ignition Timing Advance for #1 Cylinder | Ignition timing control value for No. 1 cylinder. Calculated from rotation speed, manifold pressure, intake air temperature, water temperature, and data from knock sensor etc. |
° |
| Engine Coolant Temperature | Value calculated from engine coolant temperature sensor output value. | °C or °F |
| Short Term Fuel Trim-Bank1 | Air fuel ratio correction control value for the front oxygen (A/F) sensor. | % |
| Long Term Fuel Trim-Bank1 | Air fuel ratio learning control value for the front oxygen (A/F) sensor. | % |
| Intake Manifold Absolute Pressure | Value calculated from the manifold pressure sensor. | kPa, mmHg, inHg or psig |
| Oxygen sensor #12 | Rear oxygen sensor output voltage value. | V |
| VVT Adv. Ang. Amount R | AVCS advance angle amount for the RH bank on the intake side. | deg |
| VVT Advance Target Angle Amount R | AVCS target advance angle amount for the RH bank on the intake side. This value is compared with the AVCS advance angle amount R to judge if the intake AVCS is operating properly. Response delays during the transition time. |
deg |
| VVT Adv. Ang. Amount L | AVCS advance angle amount for the LH bank on the intake side. | deg |
| VVT Advance Target Angle Amount L | AVCS target advance angle amount for the LH bank on the intake side. This value is compared with the AVCS advance angle amount L to judge if the intake AVCS is operating properly. Response delays during the transition time. |
deg |
| Exh. VVT Retard Ang. R | AVCS actual retard angle amount for the RH bank on the exhaust side. | deg |
| Ex VVT Retard Target Angle R | AVCS target retard angle amount for the RH bank on the exhaust side. This value is compared with the exhaust AVCS retard angle amount R to judge if the AVCS is operating properly. Response delays during the transition time. |
deg |
| Exh. VVT Retard Ang. L | AVCS actual retard angle amount for the LH bank on the exhaust side. | deg |
| Ex VVT Retard Target Angle L | AVCS target retard angle amount for the LH bank on the exhaust side. This value is compared with the exhaust AVCS retard angle amount L to judge if the AVCS is operating properly. Response delays during the transition time. |
deg |
| ECU ACC | ECM input power supply voltage. | V |
| Target Equivalence Ratio | Target air fuel ratio. (Lambda) It usually becomes 1.0 aiming at a theoretical air fuel ratio. |
- |
| IAT Sensor #11 | Value calculated from the intake air temperature sensor output value of the air flow sensor. | °C or °F |
| IAT Sensor #12 | Value calculated from the intake air temperature sensor output value of the manifold pressure sensor. | °C or °F |
| Ambient Temperature | Value that ECM estimates by using input values from the engine coolant temperature sensor or the intake air temperature sensor etc. | °C or °F |
| Load Value | Current rate of air amount. Value assuming that the air amount at the current engine speed with the throttle fully open is 100%. |
% |
| Absolute Load Value | Percentage of current intake air amount against the maximum air intake amount of the engine. For non-turbo engine, the value can be close to 95%, but will never be 100%. For turbo engine, this value may exceed 100% due to a boost pressure. |
% |
| Atmospheric Pressure | Value calculated from atmospheric pressure sensor output value. | kPa, mmHg, inHg or psig |
| Actual Throttle Opening Angle | Actual throttle opening angle. Calculated by ECM based on the throttle sensor input value. |
deg |
| Target Throttle Opening Angle | Control value of the target throttle opening angle calculated by ECM. Target value of opening angle in percentage when 0% means fully closed and 100% means fully open. |
% |
| Relative Throttle Position | Current throttle opening angle in percentage against the throttle voltage (full range) that has reflected the full close point learning value. The value will be approx. 70% at full open. |
% |
| Idle Mass Air Flow | Air volume correction value to maintain the target rotation speed in each water temperature. Corrects air volume when the water temperature changes. It includes values of the feedback correction amount and the learning value. |
g/s |
| Idle Mass Air Flow Feedback correct | Air volume compensation value of ISC as a feedback correction to stabilize the idling speed. | g/s |
| ISC Learning Value | Learning control value of ISC. After warming up, learning control is executed to reduce the ISC feedback correction to zero, in order to stabilize the engine speed. |
g/s |
| Idle A/C load correct | Air volume correction value when the air conditioner is turned on. ECM corrects the air volume against the target rotation speed when the air conditioner is turned ON. |
g/s |
| Electric Load Feedback Val | Air volume correction value when an electric load is turned on. ECM corrects the air volume against the set target rotation speed when the electric load is turned ON. |
g/s |
| Idle dirty throttle correct | Calculates the ISC learning values on a long-term basis, and judges as an ISC dirty throttle correction when the learning value increases gradually. When carbon or other dirt accumulates on the ISC throttle and make the throttle dirty, air volume decreases when the throttle is fully closed. The ECM increases the amount of compensation air to keep the rotation speed. |
g/s |
| Fuel Rail Pressure A | Fuel pressure sensor output value set to the high pressure fuel line. Input value to ECM. |
kPa, mmHg, inHg or psig |
| Commanded Fuel Rail Pressure A | Target fuel pressure for high pressure fuel line calculated by ECM. | kPa, mmHg, inHg or psig |
| Fuel Level | Fuel level sensor output value. Input value to ECM. Total value of main and sub. |
% |
| Fuel level resistance | Fuel level sensor resistance value. Input value to ECM. |
Ω |
| Fuel Pump Duty | Fuel pump duty ratio. Supply voltage to the fuel pump is under a duty control by the ECM. This value shows the duty ratio. While the amount of fuel supply is small, such as during idling, the duty value is lowered to decrease the supply voltage. |
% |
| Commanded Evap Purge | Evaporative purge rate displayed by the OBD. | % |
| Purge Density Learn Value | Leaning value of the evaporation gas density purged from the canister. ECM displays the estimated leaning value. |
% |
| Evap Purge Flow | Purge ratio when the evaporation gas is purged from the canister. ECM performs a duty drive to the purge solenoid valve. The amount of gas actually purged will vary depending on the vacuum pressure difference before/after the solenoid valve. Purge ratio displayed here shows current purge amount in percentage against the maximum purge amount when the maximum vacuum pressure is applied. |
% |
| Alternator control mode | Control mode of the electric power generation voltage by the alternator. Low: Mode that controls the battery charge Mid: Mode where the battery is not charged and discharged High: Mode that fixes the voltage when the battery is charged or when an electric load is turned on ExHigh: Mode where the battery is charged during deceleration |
- |
| Battery Terminal Voltage | Voltage value between battery terminals input from the battery sensor. | V |
| Battery Charge/Discharge Current | Battery charge/discharge current value input from the battery sensor. When the value is positive: The current flows to a direction that the battery is charged. When the value is negative: The current flows to a direction that the battery is discharged. |
A |
| Estimated Battery Temperature | Battery temperature input from the battery sensor. | °C or °F |
| Remaining Battery Capacity | Remaining amount of battery estimated by ECM. | % |
| Fuel system for Bank 1 | Feedback status of air fuel ratio. Open: Feedback is stopped Closed: Feedback control is being performed |
- |
| A/F Sensor #1 Resistance | Value calculated from the front oxygen (A/F) sensor output value. | Ω |
| Commanded EGR | Target value as EGR setting value calculated by ECM. | % |
| EGR Error | Percentage of the difference in actual EGR steps as compared to the target EGR steps. Both a positive value and a negative value mean that it doesn't fulfill the target. When the value is positive: It opens more than the target value. When the value is negative: It opens smaller than the target value. |
% |
| Cylinder Monitor #1 | Calculates the rotation speed between certain angles on the #1 cylinder. If the rotation speed is low compared to monitor values of other cylinders, it means that the combustion is not ideal in that cylinder. |
rpm |
| Cylinder Monitor #2 | Calculates the rotation speed between certain angles on the #2 cylinder. If the rotation speed is low compared to monitor values of other cylinders, it means that the combustion is not ideal in that cylinder. |
rpm |
| Cylinder Monitor #3 | Calculates the rotation speed between certain angles on the #3 cylinder. If the rotation speed is low compared to monitor values of other cylinders, it means that the combustion is not ideal in that cylinder. |
rpm |
| Cylinder Monitor #4 | Calculates the rotation speed between certain angles on the #4 cylinder. If the rotation speed is low compared to monitor values of other cylinders, it means that the combustion is not ideal in that cylinder. |
rpm |
| Ignition SW ON Count | Time stamp information. Number of times the ignition is ON since the vehicle was manufactured. The number of ignition ON is also recorded when a trouble code is recorded, so the comparison with that number will show you how many times the ignition has turned on since the diagnostic code was recorded. |
times |
| Count | Time stamp information. Each unit individually counts the elapsed time since the ignition is turned ON. Master integrated unit and ECM synchronize with the master time. When synchronized: "Common" When not synchronized: "Originally" |
- |
| Time Count | Time stamp information. Elapsed time after ignition ON. When a trouble code is recorded, the elapsed time after ignition ON is also recorded. |
ms |
| Time Since Engine Start | Elapsed time after starting the engine. | sec |
| Initial Engine Oil Temp. | Oil temperature when starting the engine, which is input to ECM from the oil temperature sensor. | °C |
| Initial Engine Coolant Temp. | Water temperature when starting the engine, which is input to ECM from the water temperature sensor. | °C |
| Initial Intake Air Temp. | Intake air temperature when starting the engine, which is input to ECM from the intake air temperature sensor. | °C |
| Engine Starting Time | Time needed since the cranking started till the judgment of engine start is complete. | ms |
| Soak Time | The time the vehicle has been left since the engine stopped. This value can be used to check how long the vehicle has been left with the ignition switch ON after the engine stopped. |
sec |
| Fuel Cut Elps Time | Elapsed time after experienced high rotation speed. | sec |
| AT drive status | Neutral condition. Information input from the inhibitor switch. (CVT model) |
- |
| MT gear status | Neutral condition. Information input from the neutral switch. (MT model) |
- |
| SI Drive mode(Display) | SI-DRIVE mode status. ECM output value. Displayed only on models with SI-DRIVE. |
- |
| Clutch switch | Clutch switch signal. Set to "ON" when the clutch switch is ON. (MT model) |
- |
| Stop Light Switch | Stop light switch signal. Set to "ON" when the stop light illuminates. Input value to ECM. |
- |
| Ignition switch | Ignition switch signal. Set to "ON" when the ignition switch is ON. |
- |
| A/C Mid Pressure Switch | Air conditioner middle pressure switch signal. Set to "ON" when the switch is ON. Input value to ECM. |
- |
| A/C Compressor Signal | A/C compressor drive signal. Set to "ON" when the drive signal is output. ECM output value. |
- |
| Starter Switch | Starter switch signal. Set to "ON" when the starter is ON. Input value to ECM. |
- |
| AT turbine speed | Turbine rotation speed of the transmission. Turbine rotation speed is input from the transmission CM via CAN. (CVT model) |
rpm |
| Lock Up Status | Lock-up status of the transmission. Lock up status is input from the transmission CM via CAN. (CVT model) |
- |
| P/N Signal | P/N status of the transmission. P/N range status is input from the transmission CM via CAN. (CVT model) |
- |
| O2 Sensor #11 | Installation status of the front oxygen (A/F) sensor. | - |
| O2 Sensor #12 | Installation status of the rear oxygen sensor. | - |
| Short term fuel trim #12 | Air fuel ratio correction control value for the rear. | % |
| Absolute Throttle Pos.#2 | Shows the sub throttle sensor voltage value in % against the full-range 5 V throttle sensor output voltage. | % |
| Accelerator Pedal Pos.#1 | Shows the main accelerator sensor voltage value in % against the full-range 5 V throttle sensor output voltage. | % |
| Accelerator Pedal Pos.#2 | Shows the sub accelerator sensor voltage value in % against the full-range 5 V throttle sensor output voltage. | % |
| OBD System | Shows the OBD regulation to be followed. This is the information recorded in the ECM, and it does not mean that the unit automatically judges the compliance to the OBD regulations. |
- |