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 | Display | Unit of measure |
|---|---|---|
| Engine speed signal | Engine Speed | rpm |
| Intake air amount | Mass Air Flow | g/s or lb/m |
| Vehicle speed signal | Vehicle speed | km/h or MPH |
| Throttle position signal | Throttle Opening Angle | % |
| #1 cylinder ignition timing | Ignition timing adv. #1 | ° |
| Engine coolant temperature signal | Coolant Temperature | °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 signal | Mani. Absolute Pressure | kPa, mmHg, inHg or psig |
| Oxygen sensor (bank 1 sensor 2) | Oxygen sensor #12 | V |
| ECM power supply voltage | ECU ACC | V |
| A/F target lambda | Target Equivalence Ratio | - |
| Intake air temperature signal | Intake Air Temp. | °C or °F |
| Ambient temperature | Ambient Temperature | °C or °F |
| Ambient temperature sensor value | Ambient Temperature Sensor Signal | °C or °F |
| Ambient temperature for control | Ambient Temperature for Control | °C or °F |
| Engine load data | Calculated load value | % |
| Absolute load | Absolute Load Value | % |
| Atmospheric pressure signal | Atmospheric 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. | % |
| Fuel level signal | Fuel Level | % |
| Evaporative purge | Evap Purge | % |
| Air fuel ratio control system for bank 1 | Fuel system for Bank 1 | - |
| Target EGR | Commanded EGR | % |
| EGR error | EGR Error | % |
| Active grille shutter position | Active Grille Shutter Position | - |
| Active grille shutter mechanical break status | Active Grille Shutter Mechanical Break Status | - |
| Active grille shutter sensor error status | Active Grille Shutter Sensor Error Status | - |
| Active grille shutter voltage error status | Active Grille Shutter Voltage Error Status | - |
| Active grille shutter control circuit error status | Active Grille Shutter Control Circuit Error Status | - |
| Active grille shutter stuck error status | Active Grille Shutter Stuck Error Status | - |
| Active grille shutter temperature error status | Active Grille Shutter Temperature Error Status | - |
| Active grille shutter communication error status | Active Grille Shutter Communication Error Status | - |
| Active grille shutter position commanded status | Active Grille Shutter Position Commanded Status | - |
| Active grille shutter calibration operating status | Active Grille Shutter Calibration in progress | - |
| Active grille shutter calibration commanded status | Active Grille Shutter Calibration Commanded Status | - |
| Active grille shutter calibration status | Active Grille Shutter Calibration Status | - |
| Active grille shutter warning status | Active Grille Shutter Warning Status | - |
| Active grille shutter control status 1 | Active Grille Shutter Control Status 1 | - |
| Total number of ignition switch ON | IGN Counter | times |
| Counter | Count | - |
| Elapsed time after ignition switch ON | past time after IG on | ms |
| Elapsed time after starting the engine | Time Since Engine Start | sec |
| Neutral condition | AT drive status | - |
| Engine control status | Engine Control Status | - |
| Idle stop fuel cut request | Idle Stop Fuel Cut Request | - |
| Engine torque information 1 | Engine Torque Check 1 | Nm |
| Engine torque information 2 | Engine Torque Check 2 | Nm |
| Engine torque information 3 | Engine Torque Check 3 | Nm |
| 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 | % |
| On-board diagnostic system | OBD System | - |