Freeze Frame Data [08/2019 - ]
- DESCRIPTION
- Freeze frame data records the engine conditions (fuel system information, 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, whether the engine was warmed up or not, whether 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, check the freeze frame data.
- The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using the Techstream, 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.
- Freeze frame data records the engine conditions (fuel system information, 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, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
- 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 Coolant Temp Variation after Waterpump Start Initial Intake Air Temp Intake Air Temp Variation after Engine Start 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) Vacuum Pump Current Fuel Type EVAP (Purge) VSV Evap Purge Flow Purge Density Learn Value EVAP System Vent Valve 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 O2S Impedance B1S2 O2S Impedance 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 Total FT #1 Short FT B2S1 Short FT B2S2 Long FT B2S1 Long FT B2S2 Total FT #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 Atmosphere Adoption (Secondary Air) AI Test Air Pump 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 Transfer Neutral 4WD SW Transfer L4 Stop Light Switch A/C Signal Closed Throttle Position SW Fuel Cut Condition Immobilizer Communication Time after DTC Cleared Distance from DTC Cleared Warm-up 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 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 Status of IG Switch Status of Engine Start Status of WI Terminal Low Voltage Guard Determination Status of +B Terminal Low Voltage Guard Determination Status of STA Terminal Low Voltage Guard Determination Status of IG Switch Terminal Low Voltage Guard Determination Status of Soak Timer Start Soak Timer Start Request Soak IC Current Timer Value Soak Timer Clear Soak Timer Start History Soak IC First Start Time Soak Start Count Main Relay ON Time after IG OFF Main Relay ON Time after IG OFF of Previous Trip Main Relay ON Time after Soak Start of Previous Trip Power Steering Pressure ACT VSV Brake Override System Idle Fuel Cut FC TAU Immobilizer Fuel Cut Immobilizer Fuel Cut History Fuel Remaining Volume Electrical Load Signal 1 Electrical Load Signal 2 Cruise Main SW A/F Sensor Determination (worst value) #1 A/F Sensor Determination (worst value) #2 Engine Speed Fluctuation Avg (worst value) #1 Engine Speed Fluctuation Avg (worst value) #2 Engine Speed Fluctuation Avg (worst value) #3 Engine Speed Fluctuation Avg (worst value) #4 Engine Speed Fluctuation Avg (worst value) #5 Engine Speed Fluctuation Avg (worst value) #6 SPD (NT) SPD (SP2) Shift SW Status (P Range) 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 Lock Up Shift Status SLT Solenoid Status SLU Solenoid Status Off-road Guidance Status Torque Converter Temperature Raise History