Ecd System -- Freeze Frame Data |
| 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.
- HINT:
- If it is impossible to duplicate the problem even though a DTC is stored, confirm the freeze frame data.
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 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.
| PENDING FREEZE FRAME DATA |
- HINT:
- Pending freeze frame data is stored when a 2 trip DTC is first detected during the first trip.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Engine and ECT / Trouble Codes.
Select a DTC in order to display its pending freeze frame data.
- HINT:
- Pending freeze frame data is cleared when any of the following occurs.
- Using the GTS, the DTCs are cleared.
- The cable is disconnected from the negative (-) auxiliary battery terminal.
- 40 trips with the engine fully warmed up have been performed after returning to normal.
(Pending freeze frame data will not be cleared by only returning the system to normal.) - With previous pending freeze frame data stored, if pending freeze frame data is newly stored when a 2 trip DTC is detected in the first trip, the old freeze frame data will be replaced with the new one of the newly detected DTC in the next trip.
| LIST OF FREEZE FRAME DATA |
| 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 | - |
| Atmosphere Pressure | Atmospheric pressure | - |
| MAP | Absolute pressure inside intake manifold | - |
| 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) Supported | Intake air temp (turbo) Supported | - |
| Intake Air Temp (Turbo) | Intake air temperature after intercooler | If -40°C (-40°F), the sensor circuit is open. If 190°C (374°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 | - |
| Alternate Duty Ratio | Alternate duty ratio | - |
| Glow Relay Request | Glow relay request | - |
| Glow Control Unit Duty | Glow control unit duty | - |
| Glow Indicator Supported | Glow indicator supported | - |
| Glow Indicator | Glow indicator | - |
| Accel Position | Accelerator pedal position sensor | - |
| Accel Sens. No.1 Volt % | No. 1 Accelerator pedal position | - |
| Accel Sens. No.2 Volt % | No. 2 Accelerator pedal position | - |
| Target Throttle Position Supported | Target throttle position supported | - |
| Target Throttle Position | Target throttle position | - |
| Target Throttle Position #2 Supported | Target throttle position (bank 2) supported | - |
| Target Throttle Position #2 | Target throttle position (bank 2) | - |
| Actual Throttle Position Supported | Actual throttle position supported | - |
| Actual Throttle Position | Actual throttle position | - |
| Actual Throttle Position #2 Supported | Actual throttle position (bank 2) Supported | - |
| Actual Throttle Position #2 | Actual throttle position (bank 2) | - |
| Throttle Motor DUTY | Throttle actuator | - |
| Throttle Close Learning Val. | Throttle fully closed position learned value | - |
| 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 learned 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 | - |
| Pre Injection Period | Pre injection period | - |
| 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 | - |
| Pre Injection Timing | Pre injection timing | - |
| 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 | - |
| Pilot Quantity Learning | Pilot quantity learning status | The status is only displayed while performing "Pilot Quantity Learning". |
| Injector Pilot Quantity Learning | Pilot quantity learning status | - |
| Actuator Pilot Quantity Learning | Actuator pilot quantity learning status | - |
| Temperature Pilot Quantity Learning | Temperature pilot quantity learning status | - |
| Catalyst Pilot Quantity Learning | Catalyst pilot quantity learning status | - |
| Injection Pressure Correction | Injection pressure feedback compensation volume | - |
| PCV Energization Timing | PCV energization timing | - |
| Injection EDU Relay Request | Status of the EDU relay request | - |
| Target Common Rail Pressure Supported | Target common rail pressure supported | - |
| Target Common Rail Pressure | Target common rail pressure | - |
| Common Rail Pressure Supported | Target common rail pressure supported | - |
| Common Rail Pressure | Fuel pressure | - |
| Intank Fuel Pump | Intank fuel pump | - |
| Injection Volume (Cylinder1) | Injection volume (Cylinder1) | - |
| Pressure Discharge Valve | Pressure discharge valve operation prohibition | - |
| Pump Difference Angle Learning Value | Pump difference angle learning value | - |
| AF Lambda B1S1 | Lambda equivalent ratio | - |
| AFS Voltage B1S1 | Air fuel ratio sensor output voltage | - |
| AFS Current B1S1 | Air fuel ratio sensor output current | - |
| AF Sensor Learning Value | AF sensor learning value | - |
| Target EGR Valve Pos Supported | Target EGR valve position supported | - |
| Target EGR Valve Pos | Target EGR valve position | - |
| Target EGR Valve Pos #2 Supported | Target EGR valve position (bank 2) supported | - |
| Target EGR Valve Pos #2 | Target EGR valve position (bank 2) | - |
| Actual EGR Valve Pos Supported | Actual EGR valve position supported | - |
| Actual EGR Valve Pos. | Actual EGR valve position | - |
| EGR Rate Differential(Actual-Target) | EGR rate differential(actual-target) | - |
| Actual EGR Valve Pos #2 Supported | Actual EGR valve position (bank 2) supported | - |
| Actual EGR Valve Pos #2 | Actual EGR valve position (bank 2) | - |
| EGR Position Sensor | EGR position sensor | - |
| EGR Motor Duty #1 | EGR motor duty ratio | - |
| EGR Close Lrn. Val. | EGR valve fully closed position learned value | - |
| EGR Cooler Bypass VSV | Vacuum switching valve (for EGR bypass valve) status | - |
| EGR Cooler Bypass Position | EGR cooler bypass position | - |
| Target Booster Pressure Supported | Target booster pressure supported | - |
| Target Booster Pressure | Target booster pressure | - |
| VN Turbo Command Supported | VN turbo command supported | - |
| Target VN Turbo Position | Target VN turbo position | - |
| VN Turbo Command #2 Supported | VN turbo command (bank 2) supported | - |
| Target VN Turbo Position #2 | Target VN Turbo Position (bank 2) | - |
| Actual VN Position Supported | Actual VN turbo position supported | - |
| Actual VN Turbo Position | Actual VN turbo position | - |
| Actual VN Position #2 Supported | Actual VN turbo position (bank 2) supported | - |
| Actual VN Turbo Position #2 | Actual VN turbo position (bank 2) | - |
| VN Position Sensor Out | VN position sensor output voltage | - |
| VN Close Learn Value | VN turbo fully closed position learned value | - |
| VN Turbo Max Angle | VN turbo maximum opening amount | - |
| VN Turbo Min Angle | VN turbo minimum opening amount | - |
| Exhaust Temperature B1S1 Supported | Status of the exhaust temperature B1S1 supported | - |
| Exhaust Temperature B1S1 | Exhaust temperature sensor | If -40°C (-40°F), sensor circuit is open If 1000°C (1832°F) or more, sensor circuit is shorted |
| Exhaust Temperature B1S2 Supported | Status of the exhaust temperature B1S2 supported | - |
| Exhaust Temperature B1S2 | No. 2 exhaust temperature sensor | If -40°C (-40°F), sensor circuit is open If 1000°C (1832°F) or more, sensor circuit is shorted |
| Exhaust Temperature B1S3 Supported | Status of the exhaust temperature B1S3 supported | - |
| Exhaust Temperature B1S3 | No. 3 exhaust temperature sensor | If -40°C (-40°F), sensor circuit is open If 1000°C (1832°F) or more, sensor circuit is shorted |
| DPF Differential Pressure Supported | DPF differential pressure supported | - |
| DPF Differential Pressure | DPF differential pressure | - |
| Catalyst Differential Press | Standardized DPF differential pressure | - |
| Diff. Press. Sensor Corr. | Differential pressure sensor 0 point learned value | - |
| Exhaust Fuel Addition FB | Exhaust fuel addition correction value | - |
| DPNR/DPF Status Reju(PM) | PM forced regeneration status | - |
| PM Accumulation Ratio | PM accumulation ratio | - |
| Starter Signal | Starter signal | - |
| Power Steering Signal | Power Steering Signal | - |
| Neutral Position SW Signal | Neutral position switch signal | - |
| Clutch Switch | Clutch switch | - |
| Transfer L4 | Transfer L4 | - |
| Stop Light Switch | Stop light switch | - |
| A/C Signal | Air conditioning signal | - |
| Immobiliser Communication | Immobiliser communication | - |
| TC Terminal | TC terminal status | - |
| 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 | - |
| Dist Batt Cable Disconnect | Distance driven after battery cable disconnected | - |
| IG OFF Elapsed Time | Distance driven after battery cable disconnected | - |
| TC and TE1 | TC and TE1 terminals of DLC3 | - |
| Total Distance Traveled | Total distance traveled | - |
| Engine Speed (Starter Off) | - | This item is used for troubleshooting when DTC P1604 is stored. |
| Starter Count | - | This item is used for troubleshooting when DTC P1604 is stored. |
| Run Dist of 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 | Engine switch on (IG) 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. |
| Compression Leakage Count | Compression leakage count | - |
| Plural Cylinders Rough Idle | Plural cylinders rough Idle | - |
| 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. |
| Idle Injection Volume (Min) | Idle minimum injection volume | - |
| Engine Starting Time | Engine starting time | - |
| Minimum Engine Speed | Minimum engine speed | - |
| ACM Inhibit | Vacuum switching valve assembly (for engine mounting) | - |
| Swirl Control Valve VSV | Vacuum switching valve assembly (for swirl control valve) | - |
| ACT VSV | A/C cut status | - |
| Electric Fan Motor | Electric fan motor | - |
| Brake Override System | Brake override system | - |
| Immobiliser Fuel Cut History | Status of the immobiliser fuel cut history | - |
| Comm with Reductant Control Module | Comm with reductant control module | - |
| Engine Speed of Cyl #1 | Engine speed for cylinder No. 1 | - |
| Engine Speed of Cyl #2 | Engine speed for cylinder No. 2 | - |
| Engine Speed of Cyl #3 | Engine speed for cylinder No. 3 | - |
| Engine Speed of Cyl #4 | Engine speed for cylinder No. 4 | - |
| Av Engine Speed of All Cyl | Av Engine Speed of All Cyl | - |
| 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) | Shift Switch Status (P Range) | - |
| Shift SW Status (R Range) | Shift Switch Status (R Range) | - |
| A/T Oil Temperature 1 | ATF temperature sensor value | - |
| Catalyst Thermal Degradation Count | Catalyst thermal degradation count | - |