Sfi System -- Freeze Frame Data |
| DESCRIPTION |
- Freeze frame data records the engine conditions (fuel system, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) when a malfunction is detected. When troubleshooting, it can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
- HINT:
- If it is impossible to duplicate the problem even though a DTC is output, confirm the freeze frame data.
The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using the GTS, 5 separate sets of freeze frame data can be checked.
- 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.
| LIST OF FREEZE FRAME DATA |
| GTS Display | Measurement Item | Diagnostic Note |
| Vehicle Speed | Vehicle speed | The speed indicated on the speedometer. |
| Engine Speed | Engine speed | - |
| Calculate Load | Calculated load | The load calculated by the ECM. |
| Vehicle Load | Vehicle load | - |
| MAF | Airflow rate from mass air flow meter | If the value is approximately 0.0 gm/sec.:
|
| Atmosphere Pressure | Atmospheric pressure | - |
| Coolant Temp | Engine coolant temperature | If the value is -40°C (-40°F), the sensor circuit is open. If the value is 140°C (284°F) or higher, the sensor circuit is shorted. |
| Intake Air | Intake air temperature | If the value is -40°C (-40°F), the sensor circuit is open. If the value is 140°C (284°F) or higher, the sensor circuit is shorted. |
| Engine Run Time | Accumulated engine running time | - |
| Initial Engine Coolant Temp | Initial engine coolant temperature | - |
| Initial Intake Air Temp | Initial intake air temperature | - |
| Battery Voltage | Battery voltage | - |
| Glow Indicator Supported | Status of glow indicator supported | - |
| Glow Indicator | Glow indicator | - |
| Accel Sens. No.1 Volt % | Absolute accelerator pedal position No. 1 | - |
| Accel Sens. No.2 Volt % | Absolute accelerator pedal position No. 2 | - |
| Throttle Sensor Volt % | Absolute throttle position | - |
| Throttl Sensor #2 Volt % | Absolute throttle sensor positioning #2 | - |
| Throttle Sensor Position | Throttle sensor positioning | - |
| Throttle Motor DUTY | Throttle actuator | - |
| Throttle Position | Throttle position | For use when engine stall, starting problems or rough idle is present. |
| ISC Flow | Flow rate calculated using information from each sensor | For use when engine stall, starting problems or rough idle is present. |
| ISC Position | Requested opening amount calculated using ISC control | This is the throttle valve opening amount while the engine is idling (the throttle valve opening amount necessary to maintain ISC air flow). |
| ISC Feedback Value | ISC feedback compensation amount | For use when engine stall, starting problems or rough idle is present. |
| ISC Learning Value | ISC learned compensation amount | For use when engine stall, starting problems or rough idle is present. |
| Electric Load Feedback Val | Compensation flow rate according to electrical load | For use when engine stall, starting problems or rough idle is present. |
| Air Conditioner FB Val | Compensation flow rate according to air conditioner load | For use when engine stall, starting problems or rough idle is present. |
| PS Feedback Val | Compensation flow rate according to power steering load | For use when engine stall, starting problems or rough idle is present. |
| Low Revolution Control | Low engine speed control operation state | For use when engine stall, starting problems or rough idle is present. |
| N Range Status | Shift lever N status | For use when engine stall, starting problems or rough idle is present. |
| Eng Stall Control FB Flow | Intake air compensation flow rate | For use when engine stall, starting problems or rough idle is present. |
| Deposit Loss Flow | Flow loss due to deposits | For use when engine stall, starting problems or rough idle is present. |
| Injector (Port) | Injection period of No. 1 cylinder | - |
| Injection Volum (Cylinder1) | Injection volume | - |
| Fuel Pump/Speed Status | Fuel pump/speed status | - |
| Current Fuel Type | Status of the current fuel type | - |
| EVAP (Purge) VSV | EVAP purge VSV duty ratio | - |
| Evap Purge Flow | Ratio of evaporative purge flow to intake air volume | - |
| Purge Density Learn Value | Purge density learned value | - |
| EVAP Purge VSV | EVAP purge VSV | - |
| Purge Cut VSV Duty | Purge cut VSV duty | - |
| Target Air-Fuel Ratio | Ratio compared to stoichiometric level | - |
| AF Lambda B1S1 | Fuel trim at air fuel ratio sensor (bank 1 sensor 1) | - |
| AF Lambda B2S1 | Fuel trim at air fuel ratio sensor (bank 2 sensor 1) | - |
| AFS Voltage B1S1 | Air fuel ratio sensor output voltage | Performing the Control the Injection Volume or Control the Injection Volume for A/F Sensor function of the Active Test enables the technician to check the output voltage of the sensor. |
| AFS Voltage B2S1 | Air fuel ratio sensor output voltage | Performing the Control the Injection Volume or Control the Injection Volume for A/F Sensor function of the Active Test enables the technician to check the output voltage of the sensor. |
| AFS Current B1S1 | Air fuel ratio sensor current (for Bank 1 sensor 1) | - |
| AFS Current B2S1 | Air fuel ratio sensor current (for Bank 2 sensor 1) | - |
| A/F Heater Duty #1 | A/F heater duty ratio (for Bank 1) | - |
| A/F Heater Duty #2 | A/F heater duty ratio (for Bank 2) | - |
| O2S B1S2 O2S B2S2 | Heated oxygen sensor output voltage | Performing the Control the Injection Volume or Control the Injection Volume for A/F Sensor function of the Active Test enables the technician to check the output voltage of the sensor. |
| O2 Heater B1S2 O2 Heater B2S2 | Heated oxygen sensor heater (for Sensor 2) | - |
| O2 Heater Curr Val B1S2 O2 Heater Curr Val B2S2 | Heated oxygen sensor current (for Sensor 2) | - |
| Short FT #1 | Short-term fuel trim | Short-term fuel compensation is used to maintain the air fuel ratio at the stoichiometric air fuel ratio. |
| Long FT #1 | Long-term fuel trim |
|
| A/F Learn Value Idle #1 | Air fuel ratio learned value for idling (for Bank 1) | Learning is performed when idling with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher). |
| A/F Learn Value Low #1 | Air fuel ratio learned value for low engine loads (for Bank 1) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the low load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value Mid1 #1 | Air fuel ratio learned value for mid-sized engine loads 1 (for Bank 1) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the mid-size load range closer to the low load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value Mid2 #1 | Air fuel ratio learned value for mid-sized engine loads 2 (for Bank 1) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the mid-size load range closer to the high load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value High #1 | Air fuel ratio learned value for high engine loads (for Bank 1) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the high load range (when the range of engine loads is divided into four parts). |
| Total FT #1 | Total fuel trim | - |
| Short FT #2 | Short-term fuel trim | Short-term fuel compensation is used to maintain the air fuel ratio at the stoichiometric air fuel ratio. |
| Long FT #2 | Long-term fuel trim |
|
| A/F Learn Value Idle #2 | Air fuel ratio learned value for idling (for Bank 2) | Learning is performed when idling with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher). |
| A/F Learn Value Low #2 | Air fuel ratio learned value for low engine loads (for Bank 2) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the low load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value Mid1 #2 | Air fuel ratio learned value for mid-sized engine loads 1 (for Bank 2) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the mid-size load range closer to the low load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value Mid2 #2 | Air fuel ratio learned value for mid-sized engine loads 2 (for Bank 2) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the mid-size load range closer to the high load range (when the range of engine loads is divided into four parts). |
| A/F Learn Value High #2 | Air fuel ratio learned value for high engine loads (for Bank 2) | Learning is performed when driving with the engine warmed up (engine coolant temperature is 75°C [167° F] or higher) and operating in the high load range (when the range of engine loads is divided into four parts). |
| Total FT #2 | Total fuel trim | - |
| Fuel System Status #1 | Fuel system status (bank 1) |
|
| Fuel System Status #2 | Fuel system status (bank 2) |
|
| Air pump pressure (Absolute) | Air pump pressure (for Bank 1) | - |
| Air Pump2 Pressure (Absolute) | Air pump pressure (for Bank 2) | - |
| Air Pump Pulsation Pressure | Air pump pulsation pressure | - |
| Secondary Air Control VSV | Secondary air injection system status | - |
| 2nd Air System Status | Secondary air system status | - |
| AI Test | Secondary air injection system operation prohibition | - |
| Subfreezing Conditions | Subfreezing conditions status | - |
| Air Pump Freeze | Air pump freeze status | - |
| Air Switching Valve Freeze | Switching valve freeze status | - |
| Air Switching Valve2 Freeze | Switching valve 2 freeze status | - |
| Air Pump Heater | Air pump heater status | - |
| IGN Advance | Ignition advance | - |
| Knock Feedback Value | Knocking feedback value | - |
| Knock Correct Learn Value | Knocking correction learned value | - |
| Idle Spark Advn Ctrl #1 | Individual cylinder timing advance compensation amount (No. 1) | For use when engine stall, starting problems or rough idle is present. |
| Idle Spark Advn Ctrl #2 | Individual cylinder timing advance compensation amount (No. 2) | For use when engine stall, starting problems or rough idle is present. |
| Idle Spark Advn Ctrl #3 | Individual cylinder timing advance compensation amount (No. 3) | For use when engine stall, starting problems or rough idle is present. |
| Idle Spark Advn Ctrl #4 | Individual cylinder timing advance compensation amount (No. 4) | For use when engine stall, starting problems or rough idle is present. |
| Idle Spark Advn Ctrl #5 | Individual cylinder timing advance compensation amount (No. 5) | For use when engine stall, starting problems or rough idle is present. |
| Idle Spark Advn Ctrl #6 | Individual cylinder timing advance compensation amount (No. 6) | For use when engine stall, starting problems or rough idle is present. |
| Actual VVT Angle #1 | Actual VVT displacement angle (bank 1) | This item is used for freeze frame data only |
| Actual VVT Angle #2 | Actual VVT displacement angle (bank 2) | This item is used for freeze frame data only |
| Actual VVT Ex Angle #1 | Actual VVT exhaust displacement angle (bank 1) | This item is used for freeze frame data only |
| Actual VVT Ex Angle #2 | Actual VVT exhaust displacement angle (bank 2) | This item is used for freeze frame data only |
| VVT Control Status #1 | VVT control status | - |
| VVT Control Status #2 | VVT control status | - |
| VVT Advance Fail | VVT control failure status | - |
| Catalyst Temp B1S1 | Estimated catalyst temperature (bank 1 sensor 1) | - |
| Catalyst Temp B2S1 | Estimated catalyst temperature (bank 2 sensor 1) | - |
| Catalyst Temp B1S2 | Estimated catalyst temperature (bank 1 sensor 2) | - |
| Catalyst Temp B2S2 | Estimated catalyst temperature (bank 2 sensor 2) | - |
| Starter Signal | Starter switch signal | - |
| Power Steering Signal | Power steering oil pressure switch status | - |
| Neutral Position SW Signal | Park/Neutral Position (PNP) switch signal | - |
| Clutch Switch | Clutch switch | - |
| Transfer L4 | L4 status of the transfer | - |
| Stop Light Switch | Stop light switch | - |
| A/C Signal | A/C signal | - |
| Closed Throttle Position SW | Closed throttle position switch | - |
| Fuel Cut Condition | Fuel cut condition | - |
| Immobiliser Communication | Immobiliser communication | - |
| TC Terminal | TC terminal status | - |
| Time after DTC Cleared | Cumulative time after DTC cleared | - |
| Distance from DTC Cleared | Accumulated distance driven after DTC cleared | - |
| Warmup Cycle Cleared DTC | Warm up cycles after DTC cleared | - |
| Dist Batt Cable Disconnect | Total distance vehicle driven after battery cable disconnected | - |
| IG OFF Elapsed Time | Cumulative time after turning the engine switch off | - |
| TC and TE1 | TC and CG (TE1) terminals of DLC3 | - |
| Total Distance Traveled | Total distance traveled | - |
| Ignition Trig. Count | Ignition | - |
| Cylinder #1 Misfire Count | Cylinder #1 misfire count | - |
| Cylinder #2 Misfire Count | Cylinder #2 misfire count | - |
| Cylinder #3 Misfire Count | Cylinder #3 misfire count | - |
| Cylinder #4 Misfire Count | Cylinder #4 misfire count | - |
| Cylinder #5 Misfire Count | Cylinder #5 misfire count | - |
| Cylinder #6 Misfire Count | Cylinder #6 misfire count | - |
| All Cylinders Misfire Count | Misfire count of all cylinders | - |
| Misfire RPM | Misfire RPM | - |
| Misfire Load | Misfire load | - |
| Misfire Margin | Misfire monitoring | - |
| Catalyst OT MF F/C | Fuel cut to prevent catalyst from overheating during misfire | - |
| Cat OT MF F/C History | History of fuel cut to prevent catalyst from overheating during misfire | - |
| Cat OT MF F/C Cylinder#1 | Display of fuel cut operation in No. 1 cylinder (if certain level of misfire malfunction is detected) | - |
| Cat OT MF F/C Cylinder#2 | Display of fuel cut operation in No. 2 cylinder (if certain level of misfire malfunction is detected) | - |
| Cat OT MF F/C Cylinder#3 | Display of fuel cut operation in No. 3 cylinder (if certain level of misfire malfunction is detected) | - |
| Cat OT MF F/C Cylinder#4 | Display of fuel cut operation in No. 4 cylinder (if certain level of misfire malfunction is detected) | - |
| Cat OT MF F/C Cylinder#5 | Display of fuel cut operation in No. 5 cylinder (if certain level of misfire malfunction is detected) | - |
| Cat OT MF F/C Cylinder#6 | Display of fuel cut operation in No. 6 cylinder (if certain level of misfire malfunction is detected) | - |
| Engine Speed (Starter Off) | Engine speed when starter off | For use when engine stall, starting problems or rough idle is present. |
| Starter Count | Number of times starter turned on after engine switch turned on (IG) | For use when engine stall, starting problems or rough idle is present. |
| Run Dist of Previous Trip | Distance driven during previous trip | For use when engine stall, starting problems or rough idle is present. |
| Compression Leakage Count | Compression leakage count | When the counter displays 1 or higher during an engine stall, startability malfunction or rough idle, it may be the result of pressure loss caused by deposits jamming the valve, etc. |
| Rough Idle Status | Status of the rough idle status | The following list of statuses indicates the degree and frequency of rough idling from highest to lowest. Use this as a reference when trying to reproduce the rough idling.
|
| Plural Cylinders Rough Idle | Status of the plural cylinders rough idle | Indicates multiple cylinders are the cause of rough idling when ON. |
| Rough Idle #1 | Status of the rough idle #1 |
|
| Rough Idle #2 | Status of the rough idle #2 |
|
| Rough Idle #3 | Status of the rough idle #3 |
|
| Rough Idle #4 | Status of the rough idle #4 |
|
| Rough Idle #5 | Status of the rough idle #5 |
|
| Rough Idle #6 | Status of the rough idle #6 |
|
| Engine Starting Time | Time elapsed before engine starts (after starter turns on until engine speed reaches 400 rpm) | For use when engine stall, starting problems or rough idle is present. |
| Previous Trip Coolant Temp | Engine coolant temperature during previous trip | For use when engine stall, starting problems or rough idle is present. |
| Previous Trip Intake Temp | Intake air temperature during previous trip | For use when engine stall, starting problems or rough idle is present. |
| Engine Oil Temperature | Engine oil temperature (estimated temperature) | For use when engine stall, starting problems or rough idle is present. |
| Previous Trip Eng Oil Temp | Engine oil temperature during previous trip | For use when engine stall, starting problems or rough idle is present. |
| Ambient Temp for A/C | Ambient temperature for A/C | For use when engine stall, starting problems or rough idle is present. |
| Previous Trip Ambient Temp | Ambient temperature during previous trip | For use when engine stall, starting problems or rough idle is present. |
| Engine Start Hesitation | History of hesitation during engine start | For use when engine stall, starting problems or rough idle is present. |
| Low Rev for Eng Start | History of low engine speed after engine start | For use when engine stall, starting problems or rough idle is present. |
| Minimum Engine Speed | Minimum engine speed | For use when engine stall, starting problems or rough idle is present. |
| Fuel Cut Elps Time | Time elapsed after engine runs at high speed | The time elapsed after a fuel cut after high engine speed has occurred (more than the engine speed at which fuel cut occurs + 500 rpm). |
| Power Steering Pressure | Power steering oil pressure sensor | - |
| ACT VSV | A/C cut status for Active Test | - |
| Brake Override System | Brake override system status | - |
| Idle Fuel Cut | Idle fuel cut | ON: The throttle valve is fully closed and the engine speed is more than 3500 rpm. |
| FC TAU | Fuel cut during very light load | Fuel cut is being performed under a very light load to prevent the engine combustion from becoming incomplete. |
| Immobiliser Fuel Cut | Status of the immobiliser fuel cut | - |
| Immobiliser Fuel Cut History | Status of the immobiliser fuel cut history | - |
| Comm with Power Manage | Status of the communication with power management control ECU | - |
| Comm with Air Conditioner | Status of the communication with air conditioning amplifier assembly | - |
| Electrical Load Signal 1 | Electrical load signal 1 | - |
| Cruise Cancel Signal | Status of the cruise cancel signal | - |