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», «History1», «History2», and «History3».
- Time lag between the freeze frame data of «Detect» and the freeze frame data of «History1» 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 «History1» 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 "PC application help for Subaru Select Monitor".
- A list of the support data is shown in the following table.
| Contents | Item | Unit |
|---|---|---|
| Engine speed | Engine Speed | rpm |
| Amount of intake air | Mass Air Flow | g/s or lb/m |
| Vehicle speed | Vehicle speed | km/h or MPH |
| Throttle valve angle | Throttle Opening Angle | % |
| #1 Cylinder ignition timing | Ignition timing adv. #1 | ° |
| Engine coolant temperature | Coolant Temp. | °C or °F |
| Short term fuel trim by front oxygen (A/F) sensor (bank 1) | Short term fuel trim B1 | % |
| Long term fuel trim by front oxygen (A/F) sensor (bank 1) | Long term fuel trim B1 | % |
| Intake manifold absolute pressure | Mani. Absolute Pressure | kPa, mmHg, inHg or psig |
| Oxygen sensor (bank 1 sensor 2) | Oxygen sensor #12 | V |
| AVCS advance angle amount RH | VVT Adv. Ang. Amount R | deg |
| AVCS target advance angle amount RH | VVT Advance Target Angle Amount R | deg |
| AVCS advance angle amount LH | VVT Adv. Ang. Amount L | deg |
| AVCS target advance angle amount LH | VVT Advance Target Angle Amount L | deg |
| Exhaust AVCS retard angle amount RH | Exh. VVT Retard Ang. R | deg |
| Exhaust AVCS target retard angle amount RH | Ex VVT Retard Target Angle R | deg |
| Exhaust AVCS retard angle amount LH | Exh. VVT Retard Ang. L | deg |
| Exhaust AVCS target retard angle amount LH | Ex VVT Retard Target Angle L | deg |
| ECM power supply voltage | ECU ACC | V |
| A/F target lambda | Target Equivalence Ratio | - |
| Intake air temperature (mass air flow sensor) | IAT Sensor #11 | °C or °F |
| Intake air temperature (intake manifold) | IAT Sensor #12 | °C or °F |
| Estimated value of ambient temperature | Ambient Temperature | °C or °F |
| Engine load data | Calculated load value | % |
| Absolute load | Absolute Load Value | % |
| Atmospheric pressure | Atmosphere Pressure | kPa, mmHg, inHg or psig |
| Actual throttle opening angle | Actual Throttle Opening Angle | deg |
| Target throttle opening angle | Target Throttle Opening Angle | % |
| Relative throttle opening angle | Relative Throttle Pos. | % |
| ISC air volume correction | Idle Mass Air Flow | g/s |
| ISC feedback air volume correction | Idle Mass Air Flow Feedback correct | g/s |
| ISC air flow amount learning value | ISC Learning Value | g/s |
| ISC air conditioner load correction | Idle A/C load correct | g/s |
| ISC electric load correction | Electric Load Feedback Val | g/s |
| ISC throttle dirt correction | Idle dirty throttle correct | g/s |
| Actual fuel pressure | Fuel Rail Pressure A | kPa, mmHg, inHg or psig |
| Target fuel pressure | Commanded Fuel Rail Pressure A | kPa, mmHg, inHg or psig |
| Remaining fuel level | Fuel Level | % |
| Fuel level sensor resistance | Fuel level resistance | Ω |
| Fuel pump duty ratio | Fuel Pump Duty | % |
| Evaporative purge | EVAP Purge | % |
| Purge gas density learning value | Purge Density Learn Value | % |
| Purge rate | EVAP Purge Flow | % |
| Alternator control mode | Alternator control mode | - |
| Battery terminal voltage | Battery Terminal Voltage | V |
| Battery charge/discharge current | Battery Charge/Discharge Current | A |
| Estimated value of battery temperature | Estimated Battery Temperature | °C or °F |
| Remaining amount of battery | Remaining Battery Capacity | % |
| Air fuel ratio control system for bank 1 | Fuel system for Bank 1 | - |
| A/F sensor resistance value 1 | A/F Sensor #1 Resistance | Ω |
| Target EGR | Commanded EGR | % |
| EGR deviation | EGR Error | % |
| #1 cylinder monitor | Cylinder Monitor #1 | rpm |
| #2 cylinder monitor | Cylinder Monitor #2 | rpm |
| #3 cylinder monitor | Cylinder Monitor #3 | rpm |
| #4 cylinder monitor | Cylinder Monitor #4 | rpm |
| Total number of ignition switch ON | Trip Count | times |
| Count | Count | - |
| Elapsed time after ignition switch ON | Time Count | ms |
| Elapsed time after engine start | Time Since Engine Start | sec |
| Engine oil temperature at engine start | Initial Engine Oil Temp. | °C |
| Engine coolant temperature at engine start | Initial Engine Coolant Temp. | °C |
| Intake air temperature at engine start | Initial Intake Air Temp. | °C |
| Cranking time | Engine Starting Time | ms |
| ECM power OFF time | IG OFF Elapsed Time | sec |
| Elapsed time after detecting the high rotation speed | Fuel Cut Elps Time | sec |
| Neutral condition (CVT model) | AT drive status | - |
| Neutral condition (MT model) | MT gear status | - |
| X mode | X Mode | - |
| SI-DRIVE mode | SI Drive mode(Display) | - |
| Clutch switch (MT model) | Clutch switch | - |
| Stop light switch | Stop light SW | - |
| Ignition switch | Ignition switch | - |
| Pressure switch | A/C Mid Pressure Switch | - |
| Air conditioner compressor relay output | A/C Compressor Signal | - |
| Starter switch | Starter SW | - |
| AT turbine rotation speed (CVT model) | AT turbine speed | rpm |
| Lock-up condition (CVT model) | Lock up status | - |
| P range/N range signal (CVT model) | P/N Signal | - |
| Front oxygen (A/F) sensor (bank 1 sensor 1) | (Oxygen sensor #11) | - |
| Rear oxygen sensor (bank 1 sensor 2) | (Oxygen sensor #12) | - |
| A/F correction (bank 1 sensor 2) | Short term fuel trim #12 | % |
| Absolute throttle opening angle 2 | Absolute Throttle Pos.#2 | % |
| Absolute accelerator opening angle 1 | Accelerator Pedal Pos.#1 | % |
| Absolute accelerator opening angle 2 | Accelerator Pedal Pos.#2 | % |
| OBD system | OBD System | - |