СИСТЕМА SFI > ДАННЫЕ ФИКСИРОВАННОГО НАБОРА ПАРАМЕТРОВ

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DESCRIPTION
  1. Freeze frame data records the engine conditions (fuel system, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, 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.

    УКАЗАНИЕ:
    If it is impossible to replicate the problem even though a DTC is detected, confirm the freeze frame data.


  1. A103809E02
    The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using the intelligent tester, five separate sets of freeze frame data, including the data values at the time when the DTC was set, can be checked.
    1. 3 data sets before the DTC was set.
    2. 1 data set when the DTC was set.
    3. 1 data set after the DTC was set.
    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 of the cause of the malfunction, and in judging whether it was temporary or not.

LIST OF FREEZE FRAME DATA

LABEL
(Intelligent Tester Display)
Measurement Item/Range
Diagnostic Note
Trouble Code
Freeze DTC
-
Injector
Injector
-
IGN Advance
Ignition advance
-
Calculate load
Calculate load
Calculated load by ECM
Vehicle Load
Vehicle load
-
MAF
Mass air flow volume
If value approximately 0.0 g/s:
  1. Mass air flow meter power source circuit open or short
  1. VG circuit open or short
If value 160.0 g/s or more:
  1. E2G circuit open
Engine Speed
Engine speed
-
Vehicle Speed
Vehicle speed
Speed indicated on speedometer
Coolant Temp
Engine coolant temperature
If value -40°C, sensor circuit open
If value 140°C, sensor circuit shorted
Intake Air
Intake air temperature
If value -40°C, sensor circuit open
If value 140°C, sensor circuit shorted
Air-Fuel Ratio
Air-fuel ratio
-
Purge Density Learn Value
Learning value of purge density
-
EVAP Purge Flow
Purge flow
-
EVAP (Purge) VSV
VSV for EVAP
-
Knock Correct Learn Value
Correction learning value of knocking
-
Knock Feedback Value
Feedback value of knocking
-
MAF Bank 1
Mass air flow rate for MAF meter (bank 1)
-
MAF Bank 2
Mass air flow rate for MAF meter (bank 2)
-
Intake Air Bank 1
Intake air temperature (bank 1)
-
Intake Air Bank 2
Intake air temperature (bank 2)
-
Accelerator Position No. 1
Absolute Accelerator Pedal Position (APP) No.1
-
Accelerator Position No. 2
Absolute APP No. 2
-
Throttle Position
Throttle position
Read value with engine switch on (IG) (Do not start engine)
Throttle Sensor Position
Throttle sensor positioning
Read value with engine switch on (IG) (Do not start engine)
Throttle Sensor Position #2
Throttle sensor positioning #2
-
Throttle Motor
Throttle actuator
-
O2S B1 S1
Heated oxygen sensor output
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 B2 S1
Heated oxygen sensor output
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
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 B2 S2
Heated oxygen sensor output
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
Total FT #1
Total fuel trim
-
Total FT #2
Total fuel trim
-
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 a continual deviation of short-term fuel trim from central valve
Short FT #2
Short-term fuel trim
Short-term fuel compensation used to maintain air-fuel ratio at stoichiometric air-fuel ratio
Long FT #2
Long-term fuel trim
Overall fuel compensation carried out in long-term to compensate a continual deviation of short-term fuel trim from central valve
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. OL DRIVE: Open loop due to driving conditions (fuel enrichment)
  1. OL FAULT: Open loop due to detected system fault
  1. CL FAULT: Closed loop but heated oxygen sensor, which used for fuel control malfunctioning
Fuel System Status (Bank 2)
Fuel system status (Bank 2)
  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. OL DRIVE: Open loop due to driving conditions (fuel enrichment)
  1. OL FAULT: Open loop due to detected system fault
  1. CL FAULT: Closed loop but heated oxygen sensor, which used for fuel control malfunctioning
O2FT B1 S1
Fuel trim at heated oxygen sensor
Same as Short FT #1
O2FT B2 S1
Fuel trim at heated oxygen sensor
Same as Short FT #1
O2LR B1 S1
Lean to Rich response time (bank 1 sensor 1)
-
O2LR B2 S1
Lean to Rich response time (bank 2 sensor 1)
-
O2RL B1 S1
Rich to Lean response time (bank 1 sensor 1)
-
O2RL B2 S1
Rich to Lean response time (bank 2 sensor 1)
-
Catalyst Temp (B1 S1)
Catalyst temperature
-
Catalyst Temp (B1 S2)
Catalyst temperature
-
Catalyst Temp (B2 S1)
Catalyst temperature
-
Catalyst Temp (B2 S2)
Catalyst temperature
-
Sub O2S Impedance B1 S2
Sub heated oxygen sensor impedance
-
Sub O2S Impedance B2 S2
Sub heated oxygen sensor impedance
-
Initial Engine Coolant Temp
Initial engine coolant temperature
-
Initial Intake Air Temp
Initial intake air temperature
-
Injection Volum (Cylinder 1)
Injection volume
-
ACC Relay
ACC relay
-
Starter Relay
Starter relay
-
Starter Signal
Starter signal
-
Starter Control
Starter control
-
Closed Throttle Position SW
Closed throttle position switch
-
A/C Signal
A/C signal
-
Neutral Position SW Signal
PNP Switch Signal
-
Electrical Load Signal
Electrical load signal
-
Stop Light Switch
Stop light switch
-
Fuel Cut Condition
Fuel cut condition
-
Battery Voltage
Battery voltage
-
Atmosphere Pressure
Atmospheric pressure
-
Battery Current
Battery current
-
Battery Temperature
Battery temperature
-
Alternator Output Duty
Generator output duty
-
Alt Vol - Non Active Test
Request voltage when regulator not under forced activation
-
Alt Vol - Active Test
Request voltage when regulator under forced activation
-
Fuel Pump Speed Control
Fuel pump speed control status
-
ACIS VSV
ACIS VSV
-
EVAP Purge VSV
VSV for EVAP
-
Fuel Pump/Speed Status
Fuel pump/speed status
-
Electric Fan Motor
Fan motor status
-
TC and TE1
TC and TE1 terminals of DLC3
-
ACIS Motor Duty
ACIS motor duty
-
VVT Change Angle (Bank 1)
VVT change angle (bank 1)
-
VVT Ex Hold Lrn Val
VVT exhaust hold duty ratio learning value (bank 1)
-
VVT Ex Chg Angle (Bank 1)
VV exhaust change angle (bank 1)
-
VVT Ex OCV Duty (Bank 1)
VVT exhaust OCV duty (bank 1)
-
VVT Change Angle (Bank 2)
VVT change angle (bank 2)
-
VVT Ex Hold Lrn Val (Bank 2)
VVT exhaust hold duty ratio learning value (bank 2)
-
VVT Ex Chg Angle (Bank 2)
VVT exhaust change angle (bank 2)
-
VVT Ex OCV Duty (Bank 2)
VVT exhaust OCV duty (bank 2)
-
MD VVT Aim Angle (Bank 1)


MD VVT Aim Angle (Bank 2)


MD VVT Mot Direction B1


MD VVT Mot Direction B2


Idle Fuel Cut
Idle fuel cut
ON: when throttle valve fully closed and engine speed over 1,500 rpm
FC TAU
FC TAU
Fuel cut being performed under very light load to prevent engine combustion from becoming incomplete
Ignition
Ignition
-
Cylinder #1 Misfire Rate
Cylinder #1 misfire rate
Displayed in only idling
Cylinder #2 Misfire Rate
Cylinder #2 misfire rate
Displayed in only idling
Cylinder #3 Misfire Rate
Cylinder #3 misfire rate
Displayed in only idling
Cylinder #4 Misfire Rate
Cylinder #4 misfire rate
Displayed in only idling
Cylinder #5 Misfire Rate
Cylinder #5 misfire rate
Displayed in only idling
Cylinder #6 Misfire Rate
Cylinder #6 misfire rate
Displayed in only idling
Cylinder #7 Misfire Rate
Cylinder #7 misfire rate
Displayed in only idling
Cylinder #8 Misfire Rate
Cylinder #8 misfire rate
Displayed in only idling
All Cylinders Misfire Rate
All cylinder misfire rate
Displayed in only idling
Misfire RPM
Misfire RPM
-
Misfire Load
Misfire load
-
Misfire Margin
Misfire monitoring
-
Engine Run Time
Accumulated engine running time
-
Time after DTC Cleared
Cumulative time after DTC cleared
-
Distance from DTC Cleared
Accumulated distance from DTC cleared
-
Warmup Cycle Cleared
Warm-up cycle after DTC cleared
-