SFI SYSTEM FREEZE FRAME DATA
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DESCRIPTION
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The ECM records vehicle and driving condition information (fuel system information, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) 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 engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
Tech Tips
If it is impossible to duplicate the problem even though a DTC is output, check the freeze frame data.
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*1 DTC stored *2 0.5 seconds *3 Freeze frame data which can be read 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.
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3 data sets from before the DTC was stored.
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1 data set from when the DTC was stored.
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1 data set from after the DTC was stored.
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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.
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PENDING FREEZE FRAME DATA
Tech Tips
Pending freeze frame data is stored when a 2 trip DTC is first detected during the first trip.
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON.
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Turn the GTS on.
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Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
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Select a DTC in order to display its pending freeze frame data.
Tech Tips
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Pending freeze frame data is cleared when any of the following occurs.
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Using the GTS, the DTCs cleared.
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The cable is disconnected from the negative (-) battery terminal.
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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.)
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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.
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LIST OF FREEZE FRAME DATA
Tester Display Vehicle Speed Engine Speed Calculate Load Vehicle Load MAF Atmosphere Pressure Coolant Temp Intake Air Ambient Temperature Engine Run Time Initial Engine Coolant Temp Initial Intake Air Temp Battery Voltage Glow Indicator Supported Glow Indicator Accel Sens. No.1 Volt % Accel Sens. No.2 Volt % Throttle Sensor Volt % Throttl Sensor #2 Volt % Throttle Sensor Position Throttle Motor DUTY Throttle Position ISC Flow ISC Position ISC Feedback Value ISC Learning Value Electric Load Feedback Val Air Conditioner FB Val PS Feedback Val Low Revolution Control N Range Status Eng Stall Control FB Flow Deposit Loss Flow Fuel Pump Duty Injector (Port) Injection Volum (Cylinder 1) Current Fuel Type EVAP (Purge) VSV Evap Purge Flow Purge Density Learn Value EVAP Purge VSV Purge Cut VSV Duty Target Air-Fuel Ratio AF Lambda B1S1 AF Lambda B2S1 AFS Voltage B1S1 AFS Voltage B2S1 AFS Current B1S1 AFS Current B2S1 A/F Heater Duty B1S1 A/F Heater Duty B2S1 O2S B1S2 O2S B2S2 O2 Heater B1S2 O2 Heater B2S2 O2 Heater Curr Val B1S2 O2 Heater Curr Val B2S2 Short FT B1S1 Short FT B1S2 Long FT B1S1 Long FT B1S2 Short FT B2S1 Short FT B2S2 Long FT B2S1 Long FT B2S2 Total FT #1 Total FT #2 A/F Learn Value Idle #1 A/F Learn Value Low #1 A/F Learn Value Mid1 #1 A/F Learn Value Mid2 #1 A/F Learn Value High #1 A/F Learn Value Idle #2 A/F Learn Value Low #2 A/F Learn Value Mid1 #2 A/F Learn Value Mid2 #2 A/F Learn Value High #2 Fuel System Status #1 Fuel System Status #2 Air Pump Pressure (Absolute) Air Pump2 Pressure (Absolute) Air Pump Pulsation Pressure Secondary Air Control VSV 2nd Air System Status AI Test Subfreezing Conditions Air Pump Freeze Air Switching Valve Freeze Air Switching Valve2 Freeze Air Pump Heater IGN Advance Knock Feedback Value Knock Correct Learn Value Idle Spark Advn Ctrl #1 Idle Spark Advn Ctrl #2 Idle Spark Advn Ctrl #3 Idle Spark Advn Ctrl #4 Idle Spark Advn Ctrl #5 Idle Spark Advn Ctrl #6 VVT Control Status #1 VVT Control Status #2 VVT Advance Fail Catalyst Temp B1S1 Catalyst Temp B2S1 Catalyst Temp B1S2 Catalyst Temp B2S2 Starter Signal Power Steering Signal Neutral Position SW Signal Clutch Switch Clutch Start SW Transfer L4 Stop Light Switch A/C Signal Closed Throttle Position SW Fuel Cut Condition Immobiliser Communication TC Terminal Time after DTC Cleared Distance from DTC Cleared Warmup Cycle Cleared DTC Dist Batt Cable Disconnect IG OFF Elapsed Time TC and TE1 Total Distance Traveled Ignition Trig. Count Cylinder #1 Misfire Count Cylinder #2 Misfire Count Cylinder #3 Misfire Count Cylinder #4 Misfire Count Cylinder #5 Misfire Count Cylinder #6 Misfire Count All Cylinders Misfire Count Misfire RPM Misfire Load Misfire Margin Catalyst OT MF F/C Cat OT MF F/C History Cat OT MF F/C Cylinder#1 Cat OT MF F/C Cylinder#2 Cat OT MF F/C Cylinder#3 Cat OT MF F/C Cylinder#4 Cat OT MF F/C Cylinder#5 Cat OT MF F/C Cylinder#6 Engine Speed (Starter Off) Starter Count Run Dist of Previous Trip Rough Idle Status Plural Cylinders Rough Idle Rough Idle #1 Rough Idle #2 Rough Idle #3 Rough Idle #4 Rough Idle #5 Rough Idle #6 Engine Starting Time Previous Trip Coolant Temp Previous Trip Intake Temp Engine Oil Temperature Previous Trip Eng Oil Temp Ambient Temp for A/C Previous Trip Ambient Temp Engine Start Hesitation Low Rev for Eng Start Fuel Cut Elps Time Power Steering Pressure ACT VSV Brake Override System Idle Fuel Cut FC TAU Immobiliser Fuel Cut Immobiliser Fuel Cut History Electrical Load Signal 1 Cruise Main SW Cruise Control Signal SPD (NT) SPD (SP2) Shift SW Status (P Range) Pattern Switch (PWR/M) Shift SW Status (R Range) Shift SW Status (N Range) Shift SW Status (N,P Range) Supported Shift SW Status (N,P Range) Sports Shift Up SW Sports Shift Down SW Sports Mode Selection SW Shift SW Status (D Range) A/T Oil Temperature 1 A/T Oil Temperature 2 ATF Thermal Degradation Estimate NT Sensor Voltage SP2 Sensor Voltage Lock Up Shift Status SLT Solenoid Status SLU Solenoid Status Snow or 2nd Start mode Torque Converter Temperature Raise History