SFI SYSTEM > FREEZE FRAME DATA

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DESCRIPTION
  1. Read freeze frame data using an intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if 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 detected, confirm the freeze frame data.


  1. A103809E58
    The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using an intelligent tester, 5 separate sets of freeze frame data can be checked.
    1. 3 data sets before the DTC was stored.
    2. 1 data set when the DTC was stored.
    3. 1 data set after the DTC was stored.
    1. These data sets can be used to simulate the condition of the vehicle 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.

LIST OF FREEZE FRAME DATA
*1: Only for manual transaxle

Tester Display
Measurement Item/Range
Diagnostic Note
Vehicle Speed
Vehicle speed
Speed indicated on speedometer
Engine Speed
Engine speed
-
Calculate Load
Calculated load by ECM
-
Atmosphere Pressure
Atmosphere pressure
-
MAP
Intake manifold pressure
-
Coolant Temp
Engine coolant temperature
If -40°C (-40°F), sensor circuit open
If 140°C (284°F), sensor circuit shorted
Intake Air
Intake air temperature
If -40°C (-40°F), sensor circuit open
If 140°C (284°F), sensor circuit shorted
Ambient temperature
Ambient temperature
-
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
-
Accel Sens. No.1 Volt %
Absolute accelerator pedal position No. 1
-
Accel Sens. No.2 Volt %
Absolute accelerator pedal position No. 2
-
Throttle Sensor Volt %
Throttle sensor
-
Throttle Sensor #2 Volt %
Throttle sensor No. 2
-
Throttle Sensor Position
Throttle position sensor
-
Throttle Motor DUTY
Throttle actuator
-
Throttle Position
Throttle valve opening angle
Reference:
When the engine stalls, is difficult to start, or idles roughly
ISC Flow
Flow rate calculated from information from each sensor
Reference:
When the engine stalls, is difficult to start, or idles roughly
ISC Position
Target valve opening angle calculated from ISC control
Reference:
When the engine stalls, is difficult to start, or idles roughly
ISC Feedback Value
ISC feedback value
Reference:
When the engine stalls, is difficult to start, or idles roughly
ISC Learning Value
ISC learning value
Reference:
When the engine stalls, is difficult to start, or idles roughly
Electric Load Feedback Val
Electrical load feedback value
Reference:
When the engine stalls, is difficult to start, or idles roughly
Air Conditioner FB Val
Air conditioner load feedback value
Reference:
When the engine stalls, is difficult to start, or idles roughly
Low Revolution Control
Status of low engine speed control
Reference:
When the engine stalls, is difficult to start, or idles roughly
Neutral Control
N position control status for CVT
Reference:
When the engine stalls, is difficult to start, or idles roughly
N Range Status
Judgement for shift lever N position
Reference:
When the engine stalls, is difficult to start, or idles roughly
Eng Stall Control FB Flow
Feedback value of intake air flow
Reference:
When the engine stalls, is difficult to start, or idles roughly
Deposit Loss Flow
Deposit loss air flow rate
Reference:
When the engine stalls, is difficult to start, or idles roughly
Injector (Port)
Injection period of No. 1 cylinder
-
Injection Volume (Cylinder 1)
Injection volume
-
Fuel Pump/Speed Status
Fuel pump/speed status
-
EVAP (Purge) VSV
Purge VSV duty ratio
-
Evap Purge Flow
Ratio of evaporative purge flow to intake air volume
-
Purge Density Learn Value
Learning value of purge density
-
EVAP Purge VSV
Purge VSV
-
Target Air-Fuel Ratio
Ratio compared to stoichiometric level
-
AF Lambda B1S1
Short-term fuel trim associated with sensor 1
-
AFS Voltage B1S1
Air fuel ratio sensor output voltage for sensor 1
Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensor
AFS Current B1S1
A/F sensor current for sensor 1
Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensor
O2S B1 S2
Heated oxygen sensor output voltage for sensor 2
Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensor
Short FT #1
Short-term fuel trim
Short-term fuel compensation used to maintain air-fuel ratio at stoichiometric air-fuel ratio
Long FT #1
Long-term fuel trim
Overall fuel compensation carried out in long-term to compensate for continual deviation of short-term fuel trim from central value
Total FT #1
Total fuel trim
-
Fuel System Status (Bank 1)
Fuel system status (Bank 1)
  1. OL (Open Loop): Has not yet satisfied conditions to go closed loop
  1. CL (Closed Loop): Using heated oxygen sensor as feedback for fuel control
  1. OLDrive: Open loop due to driving conditions (fuel enrichment)
  1. OLFault: Open loop due to detected system fault
  1. CLFault: Closed loop but heated oxygen sensor, which is used for fuel control, malfunctioning
Fuel System Status (Bank 2)
Fuel system status (Bank 2)
Unused
IGN Advance
Ignition timing advance for No. 1 cylinder
-
Knock Feedback Value
Feedback value of knocking
-
Knock Correct Learn Value
Correction learning value of knocking
-
Idle Spark Advn Ctrl #1
Ignition timing advance value (for No. 1 cylinder)
Reference:
When the engine stalls, is difficult to start, or idles roughly
Idle Spark Advn Ctrl #2
Ignition timing advance value (for No. 2 cylinder)
Reference:
When the engine stalls, is difficult to start, or idles roughly
Idle Spark Advn Ctrl #3
Ignition timing advance value (for No. 3 cylinder)
Reference:
When the engine stalls, is difficult to start, or idles roughly
Target EGR Position
Target EGR Position
-
EGR Step Position
EGR Step Position
-
VVT Control Status #1
VVT control status (bank 1)
-
VVT Advance Fail
Status of VVT advance fail
Reference:
When the engine stalls, is difficult to start, or idles roughly
Catalyst Temp (B1 S1)
Estimated catalyst temperature (sensor 1)
-
Catalyst Temp (B1 S2)
Estimated catalyst temperature (sensor 2)
-
Starter Signal
Starter switch (STSW) signal
-
Power Steering Signal
Power Steering Signal
-
Power Steer. Sig. Record
Power Steering Signal (history)
Signal status usually ON until ignition switch is turned off
Neutral Position SW Signal
Park/neutral position switch status
-
Clutch Switch
*1
Clutch Switch
-
Reverse Switch
*1
Reverse Switch
-
Stop Light Switch
Stop light switch
-
Shift Indication Enable
*1
Shift Indication Enable
-
A/C Signal
A/C signal
-
Closed Throttle Position SW
Closed throttle position switch
-
Fuel Cut Condition
Fuel cut status
-
Immobiliser Communication
Immobiliser status
-
Electrical Load Signal
Electrical load signal
-
Time after DTC Cleared
Cumulative time after DTC cleared
-
Distance from DTC Cleared
Accumulated distance after DTC cleared
-
Warmup Cycle Cleared DTC
Warm-up cycle after DTC cleared
-
TC and TE1
TC and TE1 terminals of DLC3
-
Ignition Trig. Count
Ignition counter to calculate misfire rate
-
Cylinder #1 Misfire Count
No. 1 cylinder misfire count
-
Cylinder #2 Misfire Count
No. 2 cylinder misfire count
-
Cylinder #3 Misfire Count
No. 3 cylinder misfire count
-
All Cylinders Misfire Count
All cylinders misfire count
-
Misfire RPM
Engine speed when misfire occurs
-
Misfire Load
Engine load when misfire occurs
-
Misfire Margin
Margin to detect engine misfire
-
Engine Starting Time
Time elapsed before engine starts (after starter turns on until engine speed reaches 400 rpm)
Reference:
When the engine stalls, is difficult to start, or idles roughly
Engine Speed (Starter Off)
Engine speed when starter off
Reference:
When the engine stalls, is difficult to start, or idles roughly
Starter Count
Number of times starter turned on after ignition switch turned from off to ON
Reference:
When the engine stalls, is difficult to start, or idles roughly
Run Dist of Previous Trip
Distance traveled during previous trip
Reference:
When the engine stalls, is difficult to start, or idles roughly
Previous Trip Coolant Temp
Coolant temperature of previous trip
Reference:
When the engine stalls, is difficult to start, or idles roughly
Previous Trip Intake Temp
Intake air temperature of previous trip
Reference:
When the engine stalls, is difficult to start, or idles roughly
Engine Oil Temperature
Engine oil temperature (estimated)
Reference:
When the engine stalls, is difficult to start, or idles roughly
Previous Trip Eng Oil Temp
Engine oil temperature of previous trip
Reference:
When the engine stalls, is difficult to start, or idles roughly
Ambient Temp for A/C
Ambient temperature
Reference:
When the engine stalls, is difficult to start, or idles roughly
Previous Trip Ambient Temp
Ambient temperature of previous trip
Reference:
When the engine stalls, is difficult to start, or idles roughly
Engine Start Hesitation
History of instances of slow engine starts
Reference:
When the engine stalls, is difficult to start, or idles roughly
Low Rev for Eng Start
History of low engine speed after engine starts
Reference:
When the engine stalls, is difficult to start, or idles roughly
Minimum Engine Speed
Minimum engine speed
Reference:
When the engine stalls, is difficult to start, or idles roughly
Fuel Cut Elps Time
Time elapsed after high engine speed detected
Time after the ECM detects a high engine speed (fuel cut speed + 500 rpm or more)
Electric Fan Motor
Electric fan motor
-
Idle Fuel Cut
Fuel cut idle
ON: when throttle valve fully closed and engine speed over 1500 rpm
FC TAU
Fuel cut TAU (Fuel cut with very light load)
Fuel cut being performed with very light load to prevent incomplete engine combustion
Immobiliser Fuel Cut
Status of the immobiliser fuel cut
-
MT Down Shift Indication
*1
MT Down Shift Indication
-
MT Up Shift Indication
*1
MT Up Shift Indication
-