2GR-FE (ENGINE CONTROL): SFI SYSTEM: FREEZE FRAME DATA; 2016 MY Sienna [12/2015

FREEZE FRAME DATA

1. 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 running or stopped, 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.
HINT:

If it is impossible to replicate the problem even though a DTC is detected, confirm 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, including the data values at the time when the DTC was stored, can be checked.
- 3 data sets before the DTC was stored.
- 1 data set when the DTC was stored.
- 1 data set after the DTC was stored.
- 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 judging whether it was temporary or not.

2. PENDING FREEZE FRAME DATA

HINT:

Pending freeze frame data is stored when a 2 trip DTC is first detected during the first trip.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) 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 Techstream, the DTCs are cleared.
- The cable is disconnected from the negative (-) 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.

3. LIST OF FREEZE FRAME DATA

Tester Display

Measurement Item

Diagnostic Note

Vehicle Speed

Vehicle speed

Speed indicated on speedometer

Engine Speed

Engine speed

Calculate Load

Calculate load

Calculated load by ECM

Vehicle Load

Vehicle load

MAF

Mass air flow volume

If the value is approximately 0.0 gm/sec:

Mass air flow meter power source circuit open or short

VG circuit open or short

If the value is 271.0 gm/sec or more:

E2G circuit open

Atmosphere Pressure

Atmospheric pressure

Coolant Temp

Engine coolant temperature

If the value is -40°C (-40°F), sensor circuit open

If the value is higher than 135°C (275°F), sensor circuit shorted

Intake Air

Intake air temperature

If the value is -40°C (-40°F), sensor circuit open

If the value is higher than 128°C (262°F), sensor circuit shorted

Engine Run Time

Accumulated engine running time

Initial Engine Coolant Temp

Initial engine coolant temperature

Coolant Temp Variation after Waterpump Start

Engine coolant temperature variation aster water pump stated

Initial Intake Air Temp

Initial intake air temperature

Intake Air Temp Variation after Engine Start

Intake air temperature variation aster engine stated

Battery Voltage

Battery voltage

Glow Indicator Supported

Glow indicator supported

Glow Indicator

Glow indicator

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 positioning

Throttl Sensor #2 Volt %

Throttle sensor positioning #2

Throttle Sensor Position

Throttle sensor positioning

Throttle Motor DUTY

Throttle actuator

Throttle Position

Throttle position

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

ISC Flow

Flow rate calculated using information from each sensor

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

ISC Position

Requested opening amount calculated using ISC control

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

This is the throttle valve opening amount while the engine is idling (the throttle valve opening amount necessary to maintain ISC air flow).

ISC Feedback Value

ISC feedback compensation amount

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

ISC Learning Value

ISC learned compensation amount

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Electric Load Feedback Val

Compensation flow rate according to electrical load

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Air Conditioner FB Val

Compensation flow rate according to air conditioner load

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Low Revolution Control

Low engine speed control operation state

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

N Range Status

Shift lever N status

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Eng Stall Control FB Flow

Intake air compensation flow rate

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Deposit Loss Flow

Flow loss due to deposits

This value indicates the amount of compensation for a decrease in flow passage area due to the buildup of deposits on the throttle valve.
Check this value for reference when the engine stalls, is difficult to start, or idles roughly.
When the ISC learned value is initialized, perform the following procedures in order to quickly relearn the Deposit Loss Flow value. After the Deposit Loss Flow has been relearned, gradual fine adjustments will continue automatically.
- Start the engine cold and allow the engine to idle.
- After the engine is warmed up (engine coolant temperature is above 80°C [176°F]), allow the engine to idle for an additional 5 minutes.
- Turn the ignition switch off and wait for 30 seconds.
- Start the engine again, and allow the engine to idle for 5 minutes.

Injector (Port)

Fuel injector assembly

Injection Volum (Cylinder 1)

Injection volume

Fuel Pump Speed Control

Fuel pump speed control status

Fuel Pump/Speed Status

Fuel pump/speed status

Vacuum Pump

Leak detection pump

ON: Operating

Current Fuel Type

Current fuel type

EVAP (Purge) VSV

Purge VSV control duty

Command signal from ECM

Evap Purge Flow

Purge flow

Purge Density Learn Value

Learning value of purge density

EVAP System Vent Valve

EVAP system vent valve

ON: Closed

EVAP Purge VSV

EVAP purge VSV

Purge Cut VSV Duty

Purge cut VSV duty

Target Air-Fuel Ratio

Target air fuel ratio

AF Lambda B1S1

Fuel trim at air fuel ratio sensor

AF Lambda B2S1

Fuel trim at air fuel ratio sensor

AFS Voltage B1S1

Air fuel ratio 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 air fuel ratio sensor

AFS Voltage B2S1

Air fuel ratio 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 air fuel ratio sensor

AFS Current B1S1

Air fuel ratio sensor current

AFS Current B2S1

Air fuel ratio sensor current

A/F Heater Duty #1

Air fuel ratio heater duty ratio

A/F Heater Duty #2

Air fuel ratio heater duty ratio

O2S B1S2

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 heated oxygen sensor

O2S B2S2

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 heated oxygen sensor

O2S Impedance B1S2

Heated oxygen sensor impedance (Bank 1)

O2S Impedance B2S2

Heated oxygen sensor impedance (Bank 2)

O2 Heater B1S2

Heated oxygen sensor heater

O2 Heater B2S2

Heated oxygen sensor heater

O2 Heater Curr Val B1S2

Heated oxygen sensor current

O2 Heater Curr Val B2S2

Heated oxygen sensor current

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 value

A/F Learn Value Idle #1

Air fuel ratio learn value of idle area for bank 1

A/F Learn Value Low #1

Air fuel ratio learn value of low load area for bank 1

A/F Learn Value Mid1 #1

Air fuel ratio learn value of middle1 load area for bank 1

A/F Learn Value Mid2 #1

Air fuel ratio learn value of middle2 load area for bank 1

A/F Learn Value High #1

Air fuel ratio learn value of high load area for bank 1

Total FT #1

Total fuel trim

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 value

A/F Learn Value Idle #2

Air fuel ratio learn value of idle area for bank 2

A/F Learn Value Low #2

Air fuel ratio learn value of low load area for bank 2

A/F Learn Value Mid1 #2

Air fuel ratio learn value of middle1 load area for bank 2

A/F Learn Value Mid2 #2

Air fuel ratio learn value of middle2 load area for bank 2

A/F Learn Value High #2

Air fuel ratio learn value of high load area for bank 2

Total FT #2

Total fuel trim

Fuel System Status #1

Fuel system status (Bank 1)

OL (Open Loop): Has not yet satisfied conditions to go closed loop
CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control
OLDrive: Open loop due to driving conditions (fuel enrichment)
OLFault: Open loop due to detected system fault
CLFault: Closed loop but air fuel ratio sensor, used for fuel control, is malfunctioning

Fuel System Status #2

Fuel system status (Bank 2)

OL (Open Loop): Has not yet satisfied conditions to go closed loop
CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control
OLDrive: Open loop due to driving conditions (fuel enrichment)
OLFault: Open loop due to detected system fault
CLFault: Closed loop but air fuel ratio sensor, used for fuel control, is malfunctioning

IGN Advance

Ignition advance

Knock Feedback Value

Feedback value of knocking

Knock Correct Learn Value

Correction learning value of knocking

Idle Spark Advn Ctrl #1

Individual cylinder timing advance compensation amount (No. 1)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Idle Spark Advn Ctrl #2

Individual cylinder timing advance compensation amount (No. 2)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Idle Spark Advn Ctrl #3

Individual cylinder timing advance compensation amount (No. 3)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Idle Spark Advn Ctrl #4

Individual cylinder timing advance compensation amount (No. 4)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Idle Spark Advn Ctrl #5

Individual cylinder timing advance compensation amount (No. 5)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Idle Spark Advn Ctrl #6

Individual cylinder timing advance compensation amount (No. 6)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

ACIS VSV

Intake air control valve for acoustic control induction system

AICV VSV

Vacuum switching valve for air intake control system

Actual VVT Angle #1

VVT displacement angle for bank 1

Actual VVT Angle #2

VVT displacement angle for bank 2

Actual VVT Ex Angle #1

Exhaust VVT displacement angle for bank 1

Actual VVT Ex Angle #2

Exhaust VVT displacement angle for bank 2

VVT Control Status #1

VVT control status (bank 1)

VVT Control Status #2

VVT control status (bank 2)

VVT Advance Fail

VVT control failure status

Catalyst Temp B1S1

Estimated catalyst temperature

Catalyst Temp B2S1

Estimated catalyst temperature

Catalyst Temp B1S2

Estimated catalyst temperature

Catalyst Temp B2S2

Estimated catalyst temperature

Starter Signal

Starter signal

Power Steering Signal

Power steering signal

Neutral Position SW Signal

Park/neutral position switch signal

Stop Light Switch

Stop light switch assembly

A/C Signal

A/C signal

Idle Up Signal

Idle up signal

Closed Throttle Position SW

Closed throttle position switch

Fuel Cut Condition

Fuel cut condition ON or OFF

Immobiliser Communication

Immobiliser communication ON or OFF

OFF: Communication malfunctioning, or engine immobiliser system set

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

Warm-up cycle after DTC cleared

Dist Batt Cable Disconnect

Accumulated distance from battery cable disconnected

IG OFF Elapsed Time

Cumulative time after ignition switch off

TC and TE1

TC and TE1 terminals of DLC3

Ignition Trig. Count

Ignition count

Cylinder #1 Misfire Count

Cylinder #1 misfire count

Cylinder #2 Misfire Count

Cylinder #2 misfire count

Cylinder #3 Misfire Count

Cylinder #3 misfire count

Cylinder #4 Misfire Count

Cylinder #4 misfire count

Cylinder #5 Misfire Count

Cylinder #5 misfire count

Cylinder #6 Misfire Count

Cylinder #6 misfire count

All Cylinders Misfire Count

All cylinder misfire count

Misfire RPM

Misfire Load

Misfired load

Misfire Margin

Misfire monitoring

Catalyst OT MF F/C

Catalyst over temperature misfire prevention F/C

Cat OT MF F/C History

Catalyst over temperature misfire prevention F/C history

Cat OT MF F/C Cylinder#1

Catalyst over temperature misfire prevention #1

Cat OT MF F/C Cylinder#2

Catalyst over temperature misfire prevention #2

Cat OT MF F/C Cylinder#3

Catalyst over temperature misfire prevention #3

Cat OT MF F/C Cylinder#4

Catalyst over temperature misfire prevention #4

Cat OT MF F/C Cylinder#5

Catalyst over temperature misfire prevention #5

Cat OT MF F/C Cylinder#6

Catalyst over temperature misfire prevention #6

Engine Speed (Starter Off)

Engine speed when starter off.

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Starter Count

Number of times starter turned on after ignition switch turned to ON

Indicates the number of times starter turned ON in the current driving cycle.
Number of times starter turned ON before engine started displayed in the 1 position.
Number of times starter turned ON after engine started displayed in the 10 position.

Example:

If "21" is displayed on the Techstream, the starter was turned ON 1 time before engine start and turned ON 2 times after engine start. (The maximum value for each counter is 9 times before engine start and 11 times after engine start)

Run Dist of Previous Trip

Distance driven during previous trip

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Before 5 seconds elapse after starting the engine, which is DTC P1604 (Startability Malfunction) detection duration, this parameter indicates the distance driven during the previous trip.
After 5 seconds elapse after starting the engine, this parameter indicates the distance driven during the current trip calculated from the vehicle speed signal.

HINT:

Run Dist of Previous Trip in the freeze frame data present when the startability malfunction occurred (DTC P1604 detected) indicates the distance driven during the previous trip, but in all other cases, such as for the snapshot data of the Data List (real-time measurements), or for freeze frame data present when DTCs other than P1604 were detected, the value indicates the distance driven during the current trip.

Engine Starting Time

Time elapsed after engine started (interval between ignition switch ON and off)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Previous Trip Coolant Temp

Engine coolant temperature during previous trip

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Previous Trip Intake Temp

Intake air temperature during previous trip

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Engine Oil Temperature

Engine oil temperature (estimated temperature)

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Previous Trip Eng Oil Temp

Engine oil temperature during previous trip

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Ambient Temp for A/C

Ambient temperature

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Previous Trip Ambient Temp

Ambient temperature during previous trip

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Engine Start Hesitation

History of hesitation during engine start

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Low Rev for Eng Start

History of low engine speed after engine start

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

Minimum Engine Speed

Minimum engine speed

Reference:

Check the value when engine stalls, is difficult to start, or idles roughly.

ACM

Duty vacuum switching valve for active control engine mount duty ratio

Electric Fan Motor

Electric fan motor (Cooling fan motor)

Brake Override System

Brake override system status

Idle Fuel Cut

Idle fuel cut

ON: when throttle valve fully closed and engine speed over 2800 rpm

FC TAU

Fuel cut being performed under very light load to prevent incomplete engine combustion

Immobiliser Fuel Cut

Status of the immobiliser fuel cut

Immobiliser Fuel Cut History

Status of the immobiliser fuel cut history

Communication with ECT

Status of the communication with ECT

Comm with Power Manage

Status of the communication with power management control ECU

Comm with Air Conditioner

Status of the communication with air conditioning amplifier assembly

Electrical Load Signal 1

Electrical load signal

Electrical Load Signal 2

Electrical load signal

A/F Sensor Determination (worst value) #1

Worst judgment value of air fuel ratio sensor output for bank 1

A/F Sensor Determination (worst value) #2

Worst judgment value of air fuel ratio sensor output for bank 2

Engine Speed Fluctuation Avg (worst value) #1

Worst value of average engine speed fluctuation (cylinder 1)

Engine Speed Fluctuation Avg (worst value) #2

Worst value of average engine speed fluctuation (cylinder 2)

Engine Speed Fluctuation Avg (worst value) #3

Worst value of average engine speed fluctuation (cylinder 3)

Engine Speed Fluctuation Avg (worst value) #4

Worst value of average engine speed fluctuation (cylinder 4)

Engine Speed Fluctuation Avg (worst value) #5

Worst value of average engine speed fluctuation (cylinder 5)

Engine Speed Fluctuation Avg (worst value) #6

Worst value of average engine speed fluctuation (cylinder 6)

Received MIL from ECT

MIL status from ECT

Shift Position Sig from ECT

Shift position signal from ECT

A/T Oil Temp from ECT

ATF temperature from ECT

SPD (NO)

Output shaft speed

SPD (NT)

Input shaft speed

Data is displayed in increments of 50 rpm

ECT Lock Up

ECT lock up status

SPD (NC)

Counter gear speed

Overdrive Cut Switch #1

Overdrive cut signal (for cruise control)

Shift SW Status (P Range)

Park/neutral position switch status

Shift SW Status (R Range)

Park/neutral position switch status

Shift SW Status (N Range)

Park/neutral position switch status

Shift SW Status (N,P Range) Supported

Shift position N or P supported

Shift SW Status (N,P Range)

Shift position N or P status

Sports Shift Up SW

Sport shift up switch status

Sports Shift Down SW

Sport shift down switch status

Sports Mode Selection SW

Sport mode select switch status

Shift SW Status (D Range)

Park/neutral position switch status