LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Matrix S, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2AZ-FE) (Diagnostics - Introduction) >> SFI System >> Data List / Active Test >> Data List / Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data List / Active Test

  1. DATA LIST 

    HINT: 

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time

    NOTE:

    In the table below, the values listed under Normal Condition are reference only. Do not depend solely on these values when determining whether or not a part is faulty.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Data List.
    7. According to the display on the Techstream, read the Data List.
    Tester Display Measurement Item/Range Normal Condition*1 Diagnostic Note
    Vehicle Speed Vehicle speed:
    Min.: 0 mph (0 km/h),
    Max.: 158 mph (255 km/h)    		 Actual vehicle speed Speed indicated on speedometer
    Engine Speed Engine speed:
    Min.: 0 rpm, Max.: 16383 rpm    		 650 to 750 rpm: Idling -
    Calculate Load Calculated load by ECM:
    Min.: 0%, Max.: 100%
    • 20 to 40%: Idling
    • 10 to 30%: Running without load (2500 rpm)
    		 -
    Vehicle Load Vehicle load:
    Min.: 0%, Max.: 25700%    		 Actual vehicle load Load percentage in terms of maximum intake air flow amount
    MAF Air flow rate from Mass Air Flow (MAF) meter:
    Min.: 0 gm/sec,
    Max.: 655.35 gm/sec    		 1 to 3 gm/sec: Idling
    2 to 7 gm/sec: Running without load (2500 rpm)    		 If value approximately 0.0 gm/sec:
    • Mass air flow meter power source circuit open
    • VG circuit open or shorted

    If value 271.0 gm/sec or more:
    • E2G circuit open
    Atmosphere Pressure Atmospheric pressure:
    Min.: 0 kPa (0 mmHg),
    Max.: 255 kPa (1912 mmHg)    		 Equivalent to atmospheric pressure -
    Coolant Temp Engine coolant temperature:
    Min.: -40°C (-40°F),
    Max.: 140°C (284°F)    		 75 to 100°C (167 to 212°F):
    After warming up
    • If value -40°C (-40°F): sensor circuit open
    • If value more than 135°C (275°F): sensor circuit shorted
    Intake Air Intake air temperature:
    Min.: -40°C (-40°F),
    Max.: 140°C (284°F)    		 Equivalent to ambient air temperature
    • If value -40°C (-40°F): sensor circuit open
    • If value more than 128°C (262°F): sensor circuit shorted
    Engine Run Time Engine run time:
    Min.: 0 s,
    Max.: 65535 s    		 Time since engine started -
    Initial Engine Coolant Temp Initial engine coolant temperature:
    Min.: -40°C (-40°F),
    Max.: 119.3°C (246.8°F)    		 Coolant temperature when engine started -
    Initial Intake Air Temp Initial intake air temperature:
    Min.: -40°C (-40°F),
    Max.: 119.3°C (246.8°F)    		 Intake air temperature when engine started -
    Battery Voltage Battery voltage:
    Min.: 0 V, Max.: 65.535 V    		 11 to 14 V: Idling -
    Glow Indicator Supported Status of the glow indicator supported:
    Unsupported or Supported    		 Unsupported -
    Glow Indicator Status of the glow indicator
    ON or OFF    		 OFF -
    Accelerator Position Accelerator pedal position:
    Min.: 0 %, Max.: 399.9 %    		 Actual accelerator pedal position -
    Accel Sens. No. 1 Volt % Accelerator pedal position No. 1:
    Min.: 0%, Max.: 100%    		 10 to 22%: Accelerator pedal fully released
    52 to 90%: Accelerator pedal fully depressed    		 -
    Accel Sens. No. 2 Volt % Accelerator pedal position No. 2:
    Min.: 0%, Max.: 100%    		 24 to 40%: Accelerator pedal fully released
    68 to 99%: Accelerator pedal fully depressed    		 -
    Accel Sensor Out No. 1 Accelerator pedal position sensor No. 1 voltage:
    Min.: 0 V, Max.: 4.98 V    		 0.5 to 1.1 V: Accelerator pedal fully released
    2.6 to 4.5 V: Accelerator pedal fully depressed    		 -
    Accel Sensor Out No. 2 Accelerator pedal position sensor No. 2 voltage:
    Min.: 0 V, Max.: 4.98 V    		 1.2 to 2.0 V: Accelerator pedal fully released
    3.4 to 4.7 V: Accelerator pedal fully depressed    		 -
    Accelerator Idle Position Whether or not accelerator pedal position sensor detecting idle:
    ON or OFF    		 ON: Idling -
    Accel Fully Close Learn #1 Accelerator fully closed learning value No. 1:
    Min.: 0 deg, Max.: 124.5 deg    		 - -
    Accel Fully Close Learn #2 Accelerator fully closed learning value No. 2:
    Min.: 0 deg., Max.: 124.5 deg.    		 - -
    Throttle Sensor Volt % Throttle valve opening percentage according to throttle position sensor
    Min.: 0%, Max.: 100%
    • 10 to 22%: Accelerator pedal fully released
    • 64 to 96%: Accelerator pedal fully depressed
    		 Value calculated based on the voltage at terminal VTA1.
    Throttle Sensor #2 Volt % Throttle valve opening percentage according to throttle position sensor No. 2/
    Min.: 0%, Max.: 100%
    • 42 to 62%: Accelerator pedal fully released
    • 92 to 100%: Accelerator pedal fully depressed
    		 Value calculated based on the voltage at terminal VTA2.
    ST1 Brake pedal signal:
    ON or OFF    		 ON: Brake pedal depressed -
    System Guard System guard:
    ON or OFF    		 - -
    Open Side Malfunction Open side malfunction:
    ON or OFF    		 - -
    Throttle Idle Position Whether or not throttle position sensor detecting idle:
    ON or OFF
    • ON: Accelerator pedal fully released
    • OFF: Accelerator pedal depressed
    		 -
    Throttle Require Position Throttle requirement position:
    Min.: 0 V, Max.: 4.98 V    		 0.5 to 1.1 V: Idling -
    Throttle Sensor Position*3 Throttle sensor positioning:
    Min.: 0%, Max.: 100%
    • 0%: Accelerator pedal fully released
    • 50 to 80%: Accelerator pedal fully depressed
    		 Recognition value for throttle opening angle on ECM
    Throttle Position No. 1 Throttle position No. 1 output voltage:
    Min.: 0 V, Max.: 4.98 V
    • 0.5 to 1.1 V: Accelerator pedal fully released
    • 3.2 to 4.8 V: Accelerator pedal fully depressed
    • 0.6 to 1.4 V: Fail-safe operating
    		 -
    Throttle Position No. 2 Throttle position No. 2 output voltage:
    Min.: 0 V, Max.: 4.98 V
    • 2.1 to 3.1 V: Accelerator pedal fully released
    • 4.6 to 4.98 V: Accelerator pedal fully depressed
    • 2.1 to 3.1 V: Fail-safe operating
    		 -
    Throttle Position Command Throttle position command value:
    Min.: 0 V, Max.: 4.98 V    		 0.5 to 4.8 V -
    Throttle Sens Open Pos #1 Throttle sensor opener position No. 1:
    Min.: 0 V, Max.: 4.98 V    		 0.6 to 1.4 V -
    Throttle Sens Open Pos #2 Throttle sensor opener position No. 2:
    Min.: 0 V, Max.: 4.98 V    		 1.7 to 2.5 V -
    Throttle Motor Current Throttle actuator current:
    Min.: 0 A, Max.: 19.9 A    		 0 to 3.0 A: Idling -
    Throttle Motor DUTY Throttle motor:
    Min.: 0%, Max.: 100%    		 10 to 22%: Idling after engine warmed up -
    Throttle Motor Duty (Open) Throttle actuator duty ratio (open):
    Min.: 0%, Max.: 255%    		 0 to 40%: Idling -
    Throttle Motor Duty (Close) Throttle actuator duty ratio (close):
    Min.: 0%, Max.: 255%    		 0 to 40%: Idling -
    Throttle Fully Close Learn Throttle valve fully closed
    (learned value):
    Min.: 0 V, Max.: 4.98 V    		 0.4 to 1.0 V: Accelerator pedal released -
    +BM Voltage +BM voltage:
    Min.: 0, Max.: 79.998 V    		 11 to 14 V: Ignition switch ON and system normal -
    Actuator Power Supply Actuator power supply
    ON or OFF    		 ON: Idling -
    Injector (Port) Injection period of No. 1 cylinder:
    Min.: 0 μs, Max.: 65535 μs    		 1000 to 3000 μs: Idling -
    Injection Volume (Cylinder1) Injection volume (Cylinder 1):
    Min.: 0 ml, Max.: 2.047 ml    		 0.05 to 0.15 ml: Idling Quantity of fuel injection volume for 10 times
    Fuel Pump/Speed Status Fuel pump/status:
    ON or OFF    		 - -
    Vacuum Pump Key-off EVAP system leak detection pump status:
    ON or OFF    		 - -
    Current Fuel Type Current fuel type Gasoline/petrol -
    EVAP (Purge) VSV EVAP (Purge) VSV control duty:
    Min.: 0%, Max.: 100%    		 10 to 50%: Idling, under purge control Order signal from ECM
    Evap Purge Flow Ratio of evaporative purge flow to intake air volume:
    Min.: 0%, Max.: 399.9%    		 0 to 10%: Idling -
    Purge Density Learn Value Learning value of purge density:
    Min.: -200, Max.: 199.993    		 -40 to 10: Idling -
    Vapor Pressure Pump Vapor pressure:
    Min.: 0 kPa (0 mmHg),
    Max.: 1441.77 kPa (10813.275 mmHg)    		 Approximately 100 kPa(abs) (750 mmHg(abs)):
    Ignition switch ON    		 EVAP system pressure monitored by canister pressure sensor
    Vapor Pressure (Calculated) Vapor pressure (calculated):
    Min.: -720.896 kPa (-5406.72 mmHg),
    Max.: 720.874 kPa (5406.555 mmHg)    		 Approximately 100 kPa(abs) (750 mmHg(abs)):
    Ignition switch ON    		 EVAP system pressure monitored by canister pressure sensor
    EVAP System Vent Valve key-off EVAP system vent valve status:
    ON or OFF    		 - -
    EVAP Purge VSV VSV status for EVAP control:
    ON or OFF    		 - -
    Purge Cut VSV Duty Purge VSV duty:
    Min.: 0%, Max.: 399.9%    		 - -
    Target Air-Fuel Ratio Ratio compared to stoichiometric level:
    Min.: 0, Max.: 1.99    		 0.8 to 1.2: Idling -
    AF Lambda B1S1 Short-term fuel trim associated with bank 1 sensor 1:
    Min.: 0, Max.: 1.99
    • Value less than 1 (0.000 to 0.999) = Rich
    • Stoichiometric air-fuel ratio=1
    • Value greater than 1 (1.001 to 1.999) = Lean
    		 -
    AFS Voltage B1S1 Air fuel ratio sensor output voltage for bank 1 sensor 1:
    Min.: 0 V, Max.: 7.99 V    		 2.6 to 3.8 V: Idling after engine warmed up 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 Air fuel ratio sensor output current for bank 1 sensor 1:
    Min.: -128 mA, Max.: 127.99 mA    		 -0.5 to 0.5 mA: Idling, engine warmed up Value becomes higher when fuel-cut executed under high engine speed
    A/F Heater Duty #1 Air fuel ratio heater duty ratio for bank 1:
    Min.: 0%, Max.: 399.9%    		 0 to 100% -
    O2S B1S2 Heated oxygen sensor output voltage for bank 1 sensor 2:
    Min.: 0 V, Max.: 1.275 V    		 0.0 to 0.9 V:
    Driving at 44 mph (70 km/h)    		 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 Impedance B1S2 Heated oxygen sensor impedance (bank 1 sensor 2):
    Min.: 0 ohm, Max.: 21247.67 ohm    		 5 to 15000 ohm:
    After driving for 10 minutes or more in urban area    		 -
    O2 Heater B1S2 Heated oxygen sensor heater for bank 1 sensor 2:
    Active or Not Act    		 - -
    O2 Heater Curr Val B1S2 Heated oxygen sensor current for bank 1 sensor 2:
    Min.: 0 A, Max.: 4.9 A    		 - -
    Short FT #1 Short-term fuel trim of bank 1:
    Min.: -100%, Max.: 99.2%    		 -15 to 15% Short-term fuel compensation used to maintain air-fuel ratio at stoichiometric air-fuel ratio
    Long FT #1 Long-term fuel trim of bank 1:
    Min.: -100%, Max.: 99.2%    		 -15 to 15% Overall fuel compensation carried out long-term to compensate continual deviation of short-term fuel trim from central value
    Total FT #1 Average value for fuel trim system of bank 1:
    Min.: -0.5, Max.: 0.496    		 -0.28 to 0.2: Idling -
    Fuel System Status #1 Fuel system status (bank 1):
    OL or CL or OLDrive or OLFault or CLFault    		 CL: Idling after warming up
    • OL (Open Loop): Has not yet satisfied conditions to go closed loop
    • CL (Closed Loop): Using heated oxygen 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, which used for fuel control malfunctioning
    Fuel System Status #2 Fuel system status (bank 2):
    OL or CL or OLDrive or OLFault or CLFault    		 Unused -
    IGN Advance Ignition timing advance for No. 1 cylinder:
    Min.: -64 deg., Max.: 63.5 deg.    		 BTDC 0 to 15 deg: Idling -
    Knock Feedback Value Feedback value of knocking:
    Min.: -1024°CA, Max.: 1023°CA    		 -20 to 0°CA:
    Driving at 44 mph (70 km/h)    		 -
    Knock Correct Learn Value Correction learning value of knocking:
    Min.: -1024°CA, Max.: 1023°CA    		 0 to 20°CA:
    Driving at 44 mph (70 km/h)    		 -
    VVT Control Status #1 VVT control (bank 1) status:
    ON or OFF    		 - -
    VVT Aim Angle #1*2 VVT aim angle (bank 1):
    Min.: 0%, Max.: 399.9%    		 - VVT duty signal value during intrusive operation
    VVT Change Angle #1*2 VVT change angle (bank 1):
    Min.: 0 DegFR, Max.: 639.9 DegFR    		 - Displacement angle during intrusive operation
    VVT OCV Duty #1*2 VVT OCV operation duty:
    Min.: 0%, Max.: 399.9%    		 - Requested duty value for intrusive operation
    VN Turbo Type Variable nozzle turbo type:
    Not Avl or Com or Vacuum or CAN Com    		 Not Avl (Unused) -
    Catalyst Temp B1S1 Catalyst temperature (associated sensor 1):
    Min.: -40°C (-40°F),
    Max.: 6513.5°C (11756.3°F)    		 Close to catalyst inlet temperature -
    Catalyst Temp B1S2 Catalyst temperature (associated sensor 2):
    Min.: -40°C (-40°F),
    Max.: 6513.5°C (11756.3°F)    		 Close to catalyst outlet temperature -
    Starter Signal Starter signal (STA terminal input status):
    Open or Close    		 Open: Cranking -
    Power Steering Signal Power steering switch signal:
    ON or OFF    		 ON: Power steering operating -
    Neutral Position SW Signal*4 Park/neutral position switch status for automatic transmission:
    ON or OFF    		 ON: Shift lever in P or N position -
    Clutch Switch*5 Clutch pedal switch assembly status:
    ON or OFF    		 OFF: Clutch pedal released
    ON: Clutch pedal fully depressed    		 -
    Stop Light Switch Stop light switch status:
    ON or OFF    		 ON: Brake pedal depressed -
    A/C Signal A/C switch status:
    ON or OFF    		 ON: A/C ON -
    Idle Up Signal Idle up signal:
    ON or OFF    		 - -
    Closed Throttle Position SW Closed throttle position switch:
    ON or OFF
    • ON: Throttle fully closed
    • OFF: Throttle open
    		 -
    Fuel Cut Condition Fuel-cut condition:
    ON or OFF    		 ON: Any fuel-cut operation executed -
    Immobilizer Communication Immobilizer communication:
    ON or OFF    		 OFF: Communication malfunctioning, or engine immobilizer system set
    ON: Communication normal    		 -
    Check Mode Check mode:
    ON or OFF    		 ON: Check mode ON Refer to CHECK MODE PROCEDURE 
    SPD Test Result Check mode result for vehicle speed sensor:
    Compl or Incmpl    		 - -
    Misfire Test Result Check mode result for misfire monitor:
    Compl or Incmpl    		 - -
    OXS1 Test Result Check mode result for heated oxygen sensor (bank 1):
    Compl or Incmpl    		 - -
    A/F Test Results #1 Check mode result for air fuel ratio sensor (bank 1):
    Compl or Incmpl    		 - -
    Complete Parts Monitor Comprehensive component monitor:
    Not Avl or Avail    		 - -
    Fuel System Monitor Fuel system monitor:
    Not Avl or Avail    		 - -
    Misfire Monitor Misfire monitor:
    Not Avl or Avail    		 - -
    EGR/VVT Monitor EGR/VVT monitor:
    Not Avl or Avail    		 - -
    EGR/VVT Monitor EGR/VVT monitor:
    Compl or Incmpl    		 - -
    O2S(A/FS) Heater Monitor O2S (A/FS) heater monitor:
    Not Avl or Avail    		 - -
    O2S(A/FS) Heater Monitor O2S (A/FS) heater monitor:
    Compl or Incmpl    		 - -
    O2S(A/FS) Monitor O2S (A/FS) monitor:
    Not Avl or Avail    		 - -
    O2S(A/FS) Monitor O2S (A/FS) monitor:
    Compl or Incmpl    		 - -
    A/C Monitor A/C monitor:
    Not Avl or Avail    		 - -
    A/C Monitor A/C monitor:
    Compl or Incmpl    		 - -
    2nd Air Monitor 2nd Air monitor:
    Not Avl or Avail    		 - -
    2nd Air Monitor 2nd Air monitor:
    Compl or Incmpl    		 - -
    EVAP Monitor EVAP monitor:
    Not Avl or Avail    		 - -
    EVAP Monitor EVAP monitor:
    Compl or Incmpl    		 - -
    Heated Catalyst Monitor Heated catalyst monitor:
    Not Avl or Avail    		 - -
    Heated Catalyst Monitor Heated catalyst monitor:
    Compl or Incmpl    		 - -
    Catalyst Monitor Catalyst monitor:
    Not Avl or Avail    		 - -
    Catalyst Monitor Catalyst monitor:
    Compl or Incmpl    		 - -
    Component Monitor ENA Comprehensive component monitor:
    Unable or Enable    		 - -
    Component Monitor CMPL Comprehensive component monitor:
    Compl or Incmpl    		 - -
    Fuel System Monitor ENA Fuel system monitor:
    Unable or Enable    		 - -
    Fuel System Monitor CMPL Fuel system monitor:
    Compl or Incmpl    		 - -
    Misfire Monitor ENA Misfire monitor:
    Unable or Enable    		 - -
    Misfire Monitor CMPL Misfire monitor:
    Compl or Incmpl    		 - -
    EGR/VVT Monitor ENA EGR monitor:
    Unable or Enable    		 - -
    EGR/VVT Monitor CMPL EGR monitor:
    Compl or Incmpl    		 - -
    Heater Monitor ENA O2S (A/FS) heater monitor:
    Unable or Enable    		 - -
    Heater Monitor CMPL O2S (A/FS) heater monitor:
    Compl or Incmpl    		 - -
    O2S(A/FS) Monitor ENA O2S (A/FS) monitor:
    Unable or Enable    		 - -
    O2S(A/FS) Monitor CMPL O2S (A/FS) monitor:
    Compl or Incmpl    		 - -
    A/C Monitor ENA A/C monitor:
    Unable or Enable    		 - -
    A/C Monitor CMPL A/C monitor:
    Compl or Incmpl    		 - -
    2nd Air Monitor ENA 2nd air monitor:
    Unable or Enable    		 - -
    2nd Air Monitor CMPL 2nd air monitor:
    Compl or Incmpl    		 - -
    EVAP Monitor ENA EVAP monitor:
    Unable or Enable    		 - -
    EVAP Monitor CMPL EVAP monitor:
    Compl or Incmpl    		 - -
    Heated Cat Monitor ENA Heated catalyst monitor:
    Unable or Enable    		 - -
    Heated Cat Monitor CMPL Heated catalyst monitor:
    Compl or Incmpl    		 - -
    Catalyst Monitor ENA Catalyst monitor:
    Unable or Enable    		 - -
    Catalyst Monitor CMPL Catalyst monitor:
    Compl or Incmpl    		 - -
    TC Terminal TC terminal status:
    ON or OFF    		 - -
    # Codes (Include History) Number of emission related DTCs 0: No emission related DTC detected -
    MIL MIL status:
    ON or OFF    		 ON: MIL ON -
    MIL ON Run Distance Distance traveled since MIL turned ON:
    Min.: 0 km (0 mile),
    Max.: 65535 km (40723 mile)    		 Distance since DTC detected -
    Running Time from MIL ON Running time since MIL turned ON:
    Min.: 0 min,
    Max.: 65535 min    		 Equivalent to running time since MIL turned ON -
    Time after DTC Cleared Time since DTCs cleared:
    Min.: 0 min,
    Max.: 65535 min    		 Equivalent to time since DTCs cleared -
    Distance from DTC Cleared Distance traveled since DTCs cleared:
    Min.: 0 km (0 mile),
    Max.: 65535 km (40723 mile)    		 Equivalent to distance driven since DTCs cleared -
    Warmup Cycle Cleared DTC Warm-up cycles since DTCs cleared:
    Min.: 0, Max.: 255    		 - Number of warm-up cycles since DTCs cleared
    Disconnect battery Cable Distance from battery cable disconnected:
    Min.: 0 km (0 mile),
    Max.: 65535 km (40723 mile)    		 - -
    IG OFF Elapsed Time Time after ignition switch off:
    Min.: 0 min, Max.: 655350 min    		 - -
    OBD Requirements OBD requirement OBD 2 (California ARB) -
    Number of Emission DTC Emission related DTCs - Number of emission related DTCs
    TC and TE1 TC and CG (TE1) terminals of DLC3:
    ON or OFF    		 - -
    Ignition Trig. Count Ignition counter to calculated misfire rate:
    Min.: 0, Max.: 65535    		 0 to 400 -
    Cylinder #1 Misfire Count Misfire count of cylinder 1:
    Min.: 0, Max.: 255    		 0 -
    Cylinder #2 Misfire Count Misfire count of cylinder 2:
    Min.: 0, Max.: 255    		 0 -
    Cylinder #3 Misfire Count Misfire count of cylinder 3:
    Min.: 0, Max.: 255    		 0 -
    Cylinder #4 Misfire Count Misfire count of cylinder 4:
    Min.: 0, Max.: 255    		 0 -
    All Cylinders Misfire Count Misfire count of all cylinders:
    Min.: 0, Max.: 255    		 0 -
    Misfire RPM Average of engine speed for first misfire range:
    Min.: 0 rpm, Max.: 6375 rpm    		 0 rpm: Misfire 0 -
    Misfire Load Average of engine load for first misfire range:
    Min.: 0 g/rev, Max.: 3.98 g/rev    		 0 g/rev: Misfire 0 -
    Misfire Margin Margin to detect engine misfire:
    Min.: -128%, Max.: 127%    		 -128 to 127% Misfire detection margin
    Catalyst OT MF F/C Catalyst overheat misfire prevention fuel cut function availability:
    Not Avl or Avail    		 Avail: Catalyst overheat misfire prevention fuel cut function available
    Not Avl: Catalyst overheat misfire prevention fuel cut function not available    		 -
    Cat OT MF F/C History Catalyst overheat misfire prevention fuel cut function history:
    ON or OFF    		 ON: Fuel cut operation history exists -
    Cat OT MF F/C Cylinder #1 Display of fuel cut operation in No. 1 cylinder (if certain level of misfire malfunction is detected):
    ON or OFF    		 ON: Fuel cut is operating -
    Cat OT MF F/C Cylinder #2 Display of fuel cut operation in No. 2 cylinder (if certain level of misfire malfunction is detected):
    ON or OFF    		 ON: Fuel cut is operating -
    Cat OT MF F/C Cylinder #3 Display of fuel cut operation in No. 3 cylinder (if certain level of misfire malfunction is detected):
    ON or OFF    		 ON: Fuel cut is operating -
    Cat OT MF F/C Cylinder #4 Display of fuel cut operation in No. 4 cylinder (if certain level of misfire malfunction is detected):
    ON or OFF    		 ON: Fuel cut is operating -
    Electric Fan Motor Electric cooling fan motor:
    ON or OFF    		 - -
    Brake Override System Brake override system status:
    ON or OFF    		 ON: Brake override system operating -
    Idle Fuel Cut Fuel cut idle:
    ON or OFF    		 ON: Fuel cut operating Idle Fuel Cut = "ON" when throttle valve fully closed and engine speed over 2500 rpm
    FC TAU Fuel cut TAU (Fuel cut during very light load):
    ON or OFF    		 ON: Fuel cut operating Fuel cut being performed under very light load to prevent engine combustion from becoming incomplete
    Electrical Load Signal 1 Electrical load signal 1:
    ON or OFF    		 - -
    Electrical Load Signal 3 Electrical load signal 3:
    ON or OFF    		 - -
    Model Code Model code - Identifying model code:
    AZE14#
    Engine Type Engine type - Identifying engine type:
    2AZFE
    Cylinder Number Cylinder number:
    Min.: 0, Max.: 255    		 - Identifying cylinder number:
    4
    Transmission Type Transmission type - Identifying transmission type:
    ECT 5th, ECT 4th or MT
    Destination Destination - Identifying destination:
    A (America)
    Model Year Model year:
    Min.: 1900, Max.: 2155    		 - Identifying model year:
    2012
    System Identification System identification - Identifying engine system:
    Gasoline (gasoline engine)
    Engine Speed of Cyl #1 Engine speed for cylinder 1:
    Min.: 0 rpm, Max.: 51199 rpm    		 - Output only when Check the Cylinder Compression performed using Active Test
    51199 rpm: Not performed Active Test
    Engine Speed of Cyl #2 Engine speed for cylinder 2:
    Min.: 0 rpm, Max.: 51199 rpm    		 - Output only when Check the Cylinder Compression performed using Active Test
    51199 rpm: Not performed Active Test
    Engine Speed of Cyl #3 Engine speed for cylinder 3:
    Min.: 0 rpm, Max.: 51199 rpm    		 - Output only when Check the Cylinder Compression performed using Active Test
    51199 rpm: Not performed Active Test
    Engine Speed of Cyl #4 Engine speed for cylinder 4:
    Min.: 0 rpm, Max.: 51199 rpm    		 - Output only when Check the Cylinder Compression performed using Active Test
    51199 rpm: Not performed Active Test
    Av Engine Speed of All Cyl Engine speed for all cylinders:
    Min.: 0 rpm, Max.: 51199 rpm    		 - Output only when Check the Cylinder Compression performed using Active Test
    51199 rpm: Not performed Active Test

    HINT: 

    • *1: If no idling conditions are specified, the shift lever should be in N (neutral) or P, and the A/C switch and all accessory switches should be OFF.
    • *2: Values are only displayed when performing the Active Tests: Control the VVT System (Bank 1) and Control the VVT Linear (Bank1). For other Active Tests, the value will be 0.
    • *3: Excluding throttle valve operating percentage due to Idle Speed Control (ISC).
    • *4: Automatic transaxle only.
    • *5: Manual transaxle only.
  2. ACTIVE TEST 

    HINT: 

    Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test.
    7. According to the display on the Techstream, perform the Active Test.
      Tester Display Test Part Control Range Diagnostic Note
      Control the Injection Volume Change injection volume Between -12.5% and 24.8%
      • All fuel injector assemblies are tested at the same time.
      • Perform the test at 3000 rpm or less.
      • Injection volume can be changed in fine gradations within the control range.
      • Control the Injection Volume enables the checking and graphing of the air fuel ratio sensor and heated oxygen sensor voltage outputs.
      • To conduct the test, enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Gas AF Control / AFS Voltage B1S1 and O2S B1S2.
      • During the Active Test, air fuel ratio feedback control and feedback learning are stopped.
      Control the Injection Volume for A/F Sensor Change injection volume -12.5%/0%/12.5%
      • All fuel injector assemblies are tested at the same time.
      • Perform the test at 3000 rpm or less.
      • Control the Injection Volume for A/F Sensor enables the checking and graphing of the air fuel ratio sensor and heated oxygen sensor voltage outputs.
      • To conduct the test, enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / Gas AF Control / AFS Voltage B1S1 and O2S B1S2.
      • During the Active Test, air fuel ratio feedback control and feedback learning are stopped.
      Activate the VSV for Evap Control Activate purge VSV control ON/OFF The purge VSV is opened with a 30% duty ratio.
      Control the Fuel Pump / Speed Activate fuel pump ON/OFF Perform this test when the following conditions are met:
      • Ignition switch is ON.
      • Engine is stopped.
      • Shift lever in P.
      Connect the TC and TE1 Turn on and off TC and TE1 connection ON/OFF
      • ON: TC and TE1 are connected.
      • OFF: TC and TE1 are disconnected.
      • Perform this test when the following conditions are met:
        • Ignition switch is ON.
        • Engine is stopped.
        • Shift lever in P.
      Control the Idle Fuel Cut Prohibit Prohibit idling fuel cut control ON/OFF Perform this test when the following conditions are met:
      • Ignition switch is ON.
      • Engine is stopped.
      • Shift lever in P.
      Prohibit the Catalyst OT Misfire prevent F/C Prohibit fuel cut which prevents catalyst from overheating during misfire ON/OFF
      ON: Fuel cut prohibited      		 Confirm that the vehicle is stopped and the engine speed is 3000 rpm or less.
      Control the Electric Cooling Fan Control electric cooling fan motor ON/OFF Perform this test when the following conditions are met:
      • Ignition switch is ON.
      • Engine is stopped.
      • Shift lever in P.
      Control the ETCS Open/Close Slow Speed Throttle actuator Close/Open
      Open: Throttle valve opens slowly      		 Perform this test when the following conditions are met:
      • Ignition switch is ON.
      • Engine is stopped.
      • Accelerator pedal is fully depressed (accelerator pedal position: 58 degrees or more).
      • Shift lever in P.
      Control the ETCS Open/Close Fast Speed Throttle actuator Close/Open
      Open: Throttle valve opens quickly      		 Same as above.
      Control the VVT Linear (Bank 1) Control camshaft timing oil control valve assembly (for intake camshaft of bank 1) -128 to 127% (This value added to present camshaft timing oil control valve control duty)
      100%: Maximum advance
      -100%: Maximum retard
      • Engine stalls or idles roughly when the camshaft timing oil control valve assembly is operated by 100%.
      • Perform this test when the following conditions are met:
        • Engine is idling.
        • Shift lever in P.
      • DTCs related to the VVT system may be stored due to Active Test operation, but this does not indicate a malfunction.
      Control the VVT System (Bank 1) Turn camshaft timing oil control valve on and off ON/OFF
      ON: VVT OCV Duty #1 100%
      • Engine stalls or idles roughly when the camshaft timing oil control valve assembly is turned on.
      • Engine runs and idles normally when the camshaft timing oil control valve assembly is off.
      • Perform this test when the following conditions are met:
        • Engine is idling.
        • Shift lever in P.
      • DTCs related to the VVT system may be stored due to Active Test operation, but this does not indicate a malfunction.
      Activate the Vacuum Pump Activate leak detection pump (built into canister pump module) ON/OFF Refer to EVAP system (See EVAP SYSTEM ).
      Activate the VSV for Vent Valve Activate vent valve (built into canister pump module) ON/OFF Refer to EVAP system (See EVAP SYSTEM ).
      Control the Select Cylinder Fuel Cut Selected cylinder (cylinder #1 to #4) injector fuel cut #1/#2/#3/#4
      ON/OFF      		 Perform this test when the following conditions are met:
      • Vehicle is stopped.
      • Engine is idling.
      • Shift lever in P.

      *1
      Control the All Cylinders Fuel Cut Fuel cut for all cylinders ON/OFF This test possible when the following conditions are met:
      • Vehicle is stopped.
      • Engine is idling.
      • Shift lever in P.

      *1
      Check the Cylinder Compression Check the cylinder compression pressure ON/OFF Fuel injection and ignition stop in all cylinders.
      *2
      NOTE:

      *1: 

      • If the display of the Data List item Catalyst OT MF F/C item is Not Avl, perform this Active Test with the vehicle stopped and the engine idling.
      • If the display of the Data List item Catalyst OT MF F/C item is Avail, perform this Active Test as described below.
        1. Stop the engine, turn the ignition switch to ON.
        2. Enter the Control the Select Cylinder Fuel Cut.
        3. Select the cylinder for fuel cut (cylinder #1 to #4) and turn the Active Test ON (press the RIGHT or LEFT button).
        4. Start the engine.

      HINT: 

      *2: In this Active Test, the fuel and ignition of all cylinders is cut. The engine must then be cranked for approximately 10 seconds. At this time, the speed of each cylinder is measured. If the speed of one cylinder is more than the other cylinders, it can be determined that the compression pressure of that cylinder is lower than the other cylinders.

      1. Warm up the engine.
      2. Turn the ignition switch off.
      3. Connect the Techstream to the DLC3.
      4. Turn the ignition switch to ON.
      5. Turn the Techstream on.
      6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Check the Cylinder Compression.

        HINT: 

        To display the entire Data List, press the pull down menu button next to Primary. Then select Compression.

      7. Push the snapshot button to turn the snapshot function on.

        HINT: 

        Using the snapshot function, data can be recorded during the Active Test.

      8. While the engine is not running, press the RIGHT or LEFT button to change Check the Cylinder Compression to ON.

        HINT: 

        After performing the above procedure, Check the Cylinder Compression will start. Fuel injection for all cylinders is prohibited and each cylinder engine speed measurement enters standby mode.

      9. Crank the engine for about 10 seconds.

        HINT: 

        Continue to crank the engine until the values change from the default value (51199 rpm).

        10. Fig 1: Identifying Engine Speed Monitor
        GTY292440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:
        • Do not crank the engine continuously for 20 seconds or more.
        • If it is necessary to crank the engine again after Check the Cylinder Compression has been changed to ON and the engine has been cranked once, press Exit to return to the Active Test menu screen. Then change Check the Cylinder Compression to ON and crank the engine.
        • Use a fully-charged battery.
      10. Monitor the engine speed (Engine Speed of Cyl #1 to #4) displayed on the Techstream.

        HINT: 

        At first, the Techstream displays extremely high cylinder engine speed values. After approximately 10 seconds of engine cranking, each cylinder engine speed measurement will change to the actual engine speed.

      11. Stop cranking the engine, and then change "Check the Cylinder Compression" to OFF after the engine stops.
        NOTE:

        If the Active Test is changed to OFF while the engine is being cranked, the engine will start.

      12. Push the snapshot button to turn the snapshot function off.
      13. Select "Stored Data" on the Techstream screen, select the recorded data and display the data as a graph.

        HINT: 

        If the data is not displayed as a graph, the change of the values cannot be observed.

      14. Check the change in engine speed values.

        HINT: 

        As the data values of the Active Test return to their default values when cranking is stopped, the engine speed value of each cylinder cannot be observed. Therefore, it is necessary to use the data recorded with the snapshot function to check the engine speed values recorded during cranking.

  3. SYSTEM CHECK 

    HINT: 

    Performing a System Check in the Utility menu enables the system, which consists of multiple actuators, to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect potential malfunctions in the system.

    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Utility.
    5. Perform the System Check by referring to the table below.
    Tester Display Test Part Control Range Diagnostic Note
    Evaporative System Check
    (Automatic Mode)    		 Perform 6 steps in order to operate EVAP system key-off monitor automatically 35°C (95°F) or less
    • If no DTCs in Pending after performing this test, system functioning normally
    • Refer to EVAP system. Refer to EVAP System
    Evaporative System Check
    (Manual Mode)    		 Perform 6 steps in order to operate EVAP system key-off monitor manually 35°C (95°F) or less
    • Used to detect malfunctioning parts
    • Refer to EVAP system. Refer to EVAP System
scientia non olet · About LEMON Manuals