СИСТЕМА SFI РЕЖИМЫ DATA LIST / ACTIVE TEST
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READ DATA LIST
Tech Tips
Using the intelligent tester's Data List allows switch, sensor, actuator, and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.
Note
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
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Warm up the engine.
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Turn the ignition switch OFF.
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Connect the intelligent tester to the DLC3.
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Turn the ignition switch ON.
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Turn the tester ON.
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Enter the following menus: Powertrain / Engine and ECT / Data List.
Tech Tips
To display the entire Data List, press the pull down menu button next to Primary. Then select All Data.
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Read the Data List on the tester's screen.
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Injector Injection period of No. 1 cylinder:
Min.: 0 ms, Max.: 32.64 ms
1.3 to 2.8 ms: Idling - IGN Advance Ignition timing advance for No. 1 cylinder:
Min.: -64°, Max.: 63.5°
BTDC 7 to 24°: Idling (A/C OFF, shift position N) - Calculated Load Calculated load by ECM:
Min.: 0%, Max.: 100%
11.4 to 16.4%: idle (A/C OFF and shift position N)
13.1 to 18.9%: 2,500 rpm (A/C OFF and shift position N)
- Vehicle Load Vehicle load:
Min.: 0%, Max.: 25700%
- - MAF Air flow rate from MAF meter:
Min.: 0 gm/s, Max.: 655 gm/s
3.2 to 4.7 g/sec.: idling
13.1 to 18.9 g/sec.: 2,500 rpm
If value approximately 0.0 g/sec.:
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Mass air flow meter power source circuit open
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VG circuit open or short if value 160.0 g/sec. or more:
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E2G circuit open
Engine Speed Engine speed:
Min.: 0 rpm, Max.: 16,383 rpm
650 to 750 rpm: Idle after engine warmed up - Vehicle Speed Vehicle speed:
Min.: 0 km/h, Max.: 255 km/h
Actual vehicle load Same as speedometer indication Coolant Temp Engine coolant temperature:
Min.: -40°C, Max.: 140°C
80 to 95°C (167 to 203°F): engine warmed up
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-40°C (-40°F): ECT sensor circuit open
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140°C (284°F) or more: ECT sensor circuit shorted
Intake Air Intake air temperature:
Min.: -40°C, Max.: 140°C
Equivalent to ambient air temperature
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If value -40°C (-40°F): sensor circuit open
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If value 140°C (284°F): sensor circuit shorted
Air-Fuel Ratio Air-fuel ratio:
Min.: 0, Max.: 1.999
0.8 to 1.2: During idling - Purge Density Learn Value Learning value of purge density:
Min.: -50, Max.: 350
- 40 to 0%: Idling Service data Purge Flow Purge flow:
Min.: 0%, Max.: 102.4%
0 to 100%: Idling - Knock Correction Learning Value Correction learning value of knocking:
Min.: -64 crankshaft angle, Max.: 1,984 crankshaft angle
0 to 22 crankshaft angle:
Driving, 70 km/h (44 mph)
Service data Knock Feedback Value Feedback value of knocking:
Min.: -64 crankshaft angle, Max.: 1,984 crankshaft angle
-22 to 0 crankshaft angle:
Driving, 70 km/h (44 mph)
Service data Clutch Current Clutch current:
Min.: 0 A, Max.: 2.49 A
- - Electromagnetic Clutch Electromagnetic clutch:
ON or OFF
- - Accelerator Position No. 1 No. 1 absolute accelerator pedal position:
Min.: 0%, Max.: 100%
10 to 22%: accelerator pedal released
54 to 86%: accelerator pedal fully depressed
- Accelerator Position No. 2 No. 2 absolute accelerator pedal position:
Min.: 0%, Max.: 100%
12 to 42%: accelerator pedal released
66 to 98%: accelerator pedal fully depressed
- Accelerator Position No. 1 No. 1 absolute accelerator pedal position sensor voltage:
Min.: 0 V, Max.: 4.98 V
- ETCS freeze frame data Accelerator Position No. 2 No. 2 absolute accelerator pedal position sensor voltage:
Min.: 0 V, Max.: 4.98 V
- ETCS freeze frame data Accelerator Position No. 1 No. 1 accelerator pedal position sensor voltage:
Min.: 0 V, Max.: 5 V
0.4 to 1.4 V: Accelerator pedal released
3.1 to 4.6 V: Accelerator pedal fully depressed
- Accelerator Position No. 2 No. 2 accelerator pedal position sensor voltage:
Min.: 0 V, Max.: 5 V
1.0 to 2.2 V: Accelerator pedal released
3.9 to 5.0 V: Accelerator pedal fully depressed
- Accelerator Idle Position Whether or not accelerator pedal position sensor detecting idle:
ON or OFF
ON: Idling - Throttle Fully Close Learn No. 1 throttle valve fully closed (learned value):
Min.: 0 V, Max.: 5 V
0.4 to 0.8 V - Accel Fully Close #1 (AD) Accelerator fully closed value (AD):
Min.: 0 V, Max.: 4.98 V
- ETCS service data Accel Fully Close Learn #1 No. 1 accelerator fully closed learning value:
Min.: 0, Max.: 124.512
- ETCS service data Accel Fully Close Learn #2 No. 2 accelerator fully closed learning value:
Min.: 0, Max.: 124.512
- ETCS service data Fail Safe Drive Whether or not fail-safe function executed:
ON or OFF
ON: ETCS has failed - Fail Safe Drive (Main CPU) Whether or not fail-safe function executed:
ON or OFF
ON: ETCS has failed - ST1 Brake pedal:
ON or OFF
ON: Released
OFF: Depressed
- System Guard System guard:
ON or OFF
- - Open Side Malfunction Open side malfunction:
ON or OFF
- ETCS service data Throttle Position Absolute throttle position sensor:
Min.: 0%, Max.: 100%
10 to 24%: throttle fully closed
64 to 96%: throttle fully open
- Throttle Idle Position Whether or not throttle position sensor detecting idle:
ON or OFF
ON: Idling - Throttle Require Position Throttle requirement position:
Min.: 0 V, Max.: 5 V
0.5 to 1.0 V: Idling - Throttle Sensor Position Throttle sensor positioning:
0 to 100%
0 to 10%: throttle fully closed
64 to 96%: throttle fully open
- Throttle Sensor Position #2 No. 2 absolute throttle position:
0 to 100%
10 to 24%: throttle fully closed
64 to 96%: throttle fully open
- Throttle Position No. 1 No. 1 throttle position sensor output voltage:
Min.: 0 V, Max.: 4.98 V
- ETCS freeze frame data Throttle Position No. 2 No. 2 throttle position sensor output voltage:
Min.: 0 V, Max.: 4.98 V
- ETCS freeze frame data Throttle Position No. 1 No. 1 throttle position:
Min.: 0 V, Max.: 5 V
0.4 to 1. 4 V: Throttle fully closed
3.1 to 4.6 V: Throttle fully open
- Throttle Position No. 2 No. 2 throttle position:
Min.: 0 V, Max.: 5 V
1.0 to 2.2 V: Throttle fully closed
3.9 to 5.0 V: Throttle fully open
- Throttle Position Commanded No. 1 throttle position command value:
Min.: 0 V, Max.: 4.98 V
0.5 to 4.8 V ETCS service data Throttle Sens Open Pos #1 Throttle sensor opener position :
Min.: 0 V, Max.: 4.98 V
0.6 to 1.0 V ETCS service data Throttle Sens Open Pos #2 No. 2 throttle sensor opener position:
Min.: 0 V, Max.: 4.98 V
2.0 to 2.6 V ETCS service data Throttle Sens Open #1 (AD) No. 1 Throttle sensor opener position (AD):
Min.: 0 V, Max.: 4.98 V
0.6 to 0.9 V ETCS service data Throttle Motor Whether or not throttle motor control permitted:
ON or OFF
ON: Idling Read value with ignition switch ON (do not start engine) Throttle Motor Current Throttle actuator current:
Min.: 0 A, Max.: 80 A
0 to 3.0 A: Idling - Throttle Motor Throttle actuator:
Min.: 0%, Max.: 100%
0.5 to 40%: Idling - Throttle Motor Current Throttle actuator current:
Min.: 0 A, Max.: 19.92 A
0 to 3.0 A: Idling - Throttle Motor Open Duty Throttle motor opening duty ratio:
Min.: 0%, Max.: 100%
0 to 40%: During idling When accelerator pedal depressed, duty ratio increased Throttle Motor Close Duty Throttle actuator closed duty ratio:
Min.: 0%, Max.: 100%
0 to 40%: During idling When accelerator pedal released quickly, duty ratio increased Throttle Motor Duty (Open) Throttle actuator duty ratio (open):
Min.: 0%, Max.: 100%
- ETCS service data Throttle Motor Duty (Close) Throttle actuator duty ratio (close):
Min.: 0%, Max.: 100%
- ETCS service data O2S B1 S2 Heated oxygen sensor output voltage for bank 1 sensor 2:
Min.: 0 V, Max.: 1.275 V
0.1 to 0.9 V:
Driving 70 km/h (44 mph)
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 voltage for bank 2 sensor 2:
Min.: 0 V, Max.: 1.275 V
0.1 to 0.9 V:
Driving 70 km/h (44 mph)
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 B1 S1 A/F sensor output voltage for bank 1 sensor 1:
Min.: 0 V, Max.: 7.999 V
2.8 to 3.8 V: Idling 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 B2 S1 A/F sensor output voltage for bank 2 sensor 1:
Min.: 0 V, Max.: 7.999 V
2.8 to 3.8 V: Idling 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 (bank 1):
Min.: 0.5, Max.: 0.498
0.5 to 1.4 at idle Below 1.0: Fuel trim is lean
1.0 or more: Fuel trim is rich
Total FT #2 Total fuel trim (bank 2):
Min.: 0.5, Max.: 0.498
0.5 to 1.4 at idle Below 1.0: Fuel trim is lean
1.0 or more: Fuel trim is rich
Short FT #1 Short-term fuel trim of bank 1:
Min.: -100%, Max.: 99.2%
0 +-20% 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%
0 +-20% Overall fuel compensation carried out in long-term to compensate continual deviation of short-term fuel trim from central value Short FT #2 Short-term fuel trim of bank 2:
Min.: -100%, Max.: 99.2%
0 +-20% Short-term fuel compensation used to maintain air fuel ratio at stoichiometric air fuel ratio Long FT #2 Long-term fuel trim of bank 1:
Min.: -100%, Max.: 99.2%
0 +-20% Overall fuel compensation carried out in long-term to compensate continual deviation of short-term fuel trim from central value Fuel System Status (Bank 1) Fuel system status (Bank 1):
OL, CL, OL DRIVE,
OL FAULT, CL FAULT
CL: Idling after engine warmed up
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OL (Open Loop): Has not yet satisfied conditions to go closed loop
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CL (Closed Loop): Using heated oxygen sensor as feedback for fuel control
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OL DRIVE: Open loop due to driving conditions (fuel enrichment)
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OL FAULT: Open loop due to detected system fault
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CL FAULT: Closed loop but heated oxygen sensor, which is used for fuel control, is malfunctioning
Fuel System Status (Bank 2) Fuel system status (Bank 2):
OL, CL, OL DRIVE,
OL FAULT, CL FAULT
CL: Idling after engine warmed up
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OL (Open Loop): Has not yet satisfied conditions to go closed loop
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CL (Closed Loop): Using heated oxygen sensor as feedback for fuel control
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OL DRIVE: Open loop due to driving conditions (fuel enrichment)
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OL FAULT: Open loop due to detected system fault
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CL FAULT: Closed loop but heated oxygen sensor, which is used for fuel control, is malfunctioning
O2FT B1 S2 Short-term fuel trim associated with bank 1 sensor 2:
Min.: -100%, Max.: 99.2%
- Same as Short FT #1 O2FT B2 S2 Short-term fuel trim associated with bank 2 sensor 2:
Min.: -100%, Max.: 99.2%
- Same as Short FT #2 AF FT B1 S1 Short-term fuel trim associated with bank 1 sensor 1:
Min.: 0, Max.: 1.999
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Value less than 1 (0.000 to 0.999) = Lean
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Stoichiometric air fuel ratio = 1
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Value greater than 1 (1.001 to 1.999) = Rich
- AF FT B2 S1 Short-term fuel trim associated with bank 2 sensor 1:
Min.: 0, Max.: 1.999
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Value less than 1 (0.000 to 0.999) = Lean
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Stoichiometric air fuel ratio = 1
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Value greater than 1 (1.001 to 1.999) = Rich
- Catalyst Temp (B1 S1) Calculated catalyst temperature (bank 1 sensor 1):
Min.: -40°C, Max.: 6,513.5°C
400 to 800°C: Catalyst is warmed up - Catalyst Temp (B2 S1) Calculated catalyst temperature (bank 2 sensor 1):
Min.: -40°C, Max.: 6,513.5°C
400 to 800°C: Catalyst is warmed up - Catalyst Temp (B1 S2) Calculated catalyst temperature (bank 1 sensor 2):
Min.: -40°C, Max.: 6,513.5°C
400 to 800°C: Catalyst is warmed up - Catalyst Temp (B2 S2) Calculated catalyst temperature (bank 2 sensor 2):
Min.: -40°C, Max.: 6,513.5°C
400 to 800°C: Catalyst is warmed up - Initial Engine Coolant Temp Initial engine coolant temperature:
Min.: -40°C, Max.: 120°C
Coolant temperature when engine started Service data Initial Intake Air Temp Initial intake air temperature:
Min.: -40°C, Max.: 120°C
Intake air temperature when engine started Service data Injection Volume (Cylinder 1) Injection volume (cylinder 1):
Min.: 0 ml, Max.: 2.048 ml
0 to 0.5 ml Quantity of fuel injection volume for 10 times SPD (SP2) Output shaft speed:
Min.: 0 km/h, Max.: 255 km/h
- For automatic transmission SPD (NT) Input shaft speed:
Min.: 0 rpm, Max.: 12,750 rpm
- For automatic transmission Starter Signal Starter signal: ON or OFF ON: Cranking - Power Steering Switch Power steering signal:
ON or OFF
ON: Power steering operation - Power Steering Signal Power steering signal:
ON or OFF
ON: When steering wheel first turned after ignition switch turned ON This signals status usually ON until ignition switch turned OFF Closed Throttle Position SW Closed throttle position switch: ON or OFF ON: Throttle fully closed
OFF: Throttle open
- A/C Signal A/C signal: ON or OFF ON: A/C ON - Neutral Position SW Signal PNP switch:
ON or OFF
ON: Shift position is P or N For automatic transmission Electrical Load Signal Electrical load signal:
ON or OFF
ON: Headlights or defogger turned ON - Stop Light Switch Stop light switch: ON or OFF ON: Brake pedal depressed - ETCS Actuator Power Whether or not electric throttle control system power inputted:
ON or OFF
ON: Idling - +BM Voltage +BM voltage:
Min.: 0, Max.: 19.92
10 to 15 V: Idling ETCS service data Battery Voltage Battery voltage:
Min.: 0 V, Max.: 65.535 V
9 to 14 V: Idling - Actuator Power Supply Actuator power supply
ON or OFF
ON: Idling ETCS service data Variable Intake Control VSV VSV status for ACIS control:
ON or OFF
- Active Test support data ACT VSV A/C cut status for Active Test:
ON or OFF
- Active Test support data VVT Control Status (Bank 2) VVT control (bank 2) status:
ON or OFF
- Active Test support data EVAP Purge VSV VSV status for EVAP control:
ON or OFF
- Active Test support data Fuel Pump/Speed Status Fuel pump/speed status:
ON or OFF
- Active Test support data VVT Control Status (Bank 1) VVT control (bank 1) status:
ON or OFF
- Active Test support data TC and TE1 TC and TE1 terminal of DLC3:
ON or OFF
- Active Test support data VVTL Aim Angle (Bank 1) * VVT aim angle (bank 1):
Min.: 0%, Max.: 100%
0%: Idling VVT duty signal value during intrusive operation VVT Change Angle (Bank 1) * VVT change angle:
Min.: 0°FR, Max.: 60°FR
0 to 5°FR: Idling Displacement angle during intrusive operation VVT OCV Duty (Bank 1) * VVT OCV operation duty:
Min.: 0%, Max.: 100%
0%: Idling Requested duty value for intrusive operation VVTL Aim Angle (Bank 2) * VVT aim angle (bank 2):
Min.: 0%, Max.: 100%
0%: Idling VVT duty signal value during intrusive operation VVT Change Angle (Bank 2) * VVT change angle (bank 2):
Min.: 0°FR, Max.: 60°FR
0 to 5°FR: Idling Displacement angle during intrusive operation VVT OCV Duty (Bank 2) * VVT OCV (bank 2) operation duty:
Min.: 0%, Max.: 100%
0%: Idling Requested duty value for intrusive operation Idle Fuel Cut Fuel cut idle:
ON or OFF
ON: Fuel cut operation Idle fuel cut: ON when throttle valve fully closed and engine speed over 2,800 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 Ignition Ignition counter:
Min.: 0, Max.: 800
0 to 800 - Cylinder #1 Misfire Rate Misfire ratio of cylinder #1:
Min.: 0, Max.: 255
0 - Cylinder #2 Misfire Rate Misfire ratio of cylinder #2:
Min.: 0, Max.: 255
0 - Cylinder #3 Misfire Rate Misfire ratio of cylinder #3:
Min.: 0, Max.: 255
0 - Cylinder #4 Misfire Rate Misfire ratio of cylinder #4:
Min.: 0, Max.: 255
0 - Cylinder #5 Misfire Rate Misfire ratio of cylinder #5:
Min.: 0, Max.: 255
0 - Cylinder #6 Misfire Rate Misfire ratio of cylinder #6:
Min.: 0, Max.: 255
0 - All Cylinder Misfire Rate All cylinder misfire rate:
Min.: 0, Max.: 255
0 - Misfire RPM Average engine RPM when misfire detected:
Min.: 0 rpm, Max.: 6,375 rpm
- - Misfire Load Average engine load when misfire detected:
Min.: 0 g/rev, Max.: 3.98 g/rev
- - Misfire Margin Rate of misfire margin More than 30% - #Codes #Codes:
Min.: 0, Max.: 255
- Number of detected DTCs Check Mode Check mode:
0: OFF, 1: ON
ON: Check mode ON SPD Test Check mode result for vehicle speed sensor:
0: COMPL, 1: INCMPL
- - Misfire Test Check mode result for misfire monitor:
0: COMPL, 1: INCMPL
- - OXS2 Test Check mode result for heated oxygen sensor (bank 2):
0: COMPL, 1: INCMPL
- - OXS1 Test Check mode result for heated oxygen sensor (bank 1):
0: COMPL, 1: INCMPL
- - A/F Test Results (Bank 2) Check mode result for A/F sensor (bank 2):
0: COMPL, 1: INCMPL
- - A/F Test Results (Bank 1) Check mode result for A/F sensor (bank 1):
0: COMPL, 1: INCMPL
- - MIL ON Run Distance MIL ON run distance:
Min.: 0 km,
Max.: 65,535 km
Distance after DTC detected - Running Time From MIL ON Running time from MIL ON:
Min.: 0 minutes,
Max.: 65,535 minutes
Equivalent to running time after MIL ON - Engine Run Time Engine run time:
Min.: 0 seconds,
Max.: 65,535 seconds
Time after engine start Service data Time After DTC Cleared Time after DTC cleared:
Min.: 0 minutes,
Max.: 65,535 minutes
Equivalent to time after DTCs erased - Distance from DTC Cleared Distance after DTC cleared:
Min.: 0 km, Max.: 65.535 km
Equivalent to drive distance after DTCs erased - Warmup Cycle Cleared DTC Warm up cycle after DTC cleared:
Min.: 0, Max.: 225
- Number of warm up cycles after DTC cleared Model Code Model code - Identifying the model code:
GGN2#
Engine Type Engine type - Identifying the engine type:
1GR-FE
Cylinder Number Number of cylinders:
Min.: 0, Max.: 255
- Identifying the number of cylinders: 6 Destination Destination - Identifying destination:
A (America)
Model Year Model year:
Min.: 1900, Max.: 2155
- Identifying model year:
200#
*: Data List values are only displayed when performing the following Active Tests: VVT B1, VVT B2, VVT EX B1 and VVT EX B2. For other Active Tests, the Data List value will be 0.
Tech Tips
Normal Condition: If no conditions are specifically stated for "Idling", it means the shift lever is on N or P, the A/C switch is OFF and all accessory switches are OFF.
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PERFORM ACTIVE TEST
Tech Tips
Performing the intelligent tester's Active Test allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time.
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The Data List can be displayed during the Active Test.
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Warm up the engine.
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Turn the ignition switch OFF.
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Connect the intelligent tester to the DLC3.
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Turn the ignition switch ON.
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Turn the tester ON.
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Enter the following menus: Powertrain / Engine and ECT / Active Test.
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According to the display on the tester, perform the Active Test.
Tester Display Test Part Control Range Diagnostic Note Control the Injection Volume Change injection volume -12.5 to 24.8%
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All injectors tested at same time
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Perform test at less than 3,000 rpm
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Injection volume can be changed in 1% graduations within control range
Control the Injection Volume for A/F sensor Change injection volume Lower by -12.5% or increases by 24.8%
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Perform test at less than 3,000 rpm
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Control the injection volume for A/F sensor enables checking and graphing of A/F sensor and heated oxygen sensor voltage outputs
Activate the Fuel Pump Speed Control Fuel pump speed control ON (low speed)/OFF (high speed) - Activate the VSV for Intake Control ACIS VSV ON/OFF - Activate the VSV for EVAP Control EVAP VSV ON/OFF - Active the VVT System (Bank 1) Turn on and off Oil Control Valve (OCV) ON/OFF
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Engine stalls or rough idles when the VVT OCV is turned ON
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Normal engine running or idling when OCV OFF
Control the VVT System (Bank 2) Turn on and off OCV ON/OFF
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Engine stalls or rough idles when the VVT OCV is turned ON
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Normal engine running or idling when OCV OFF
Control the A/C Cut Signal Control the A/C cut signal ON/OFF - Control the Fuel Pump/Speed Fuel pump ON/OFF - Control the TC and TE1 Turn on and off TC and TE1 connection ON/OFF ON: TC and TE1 connected
OFF: TC and TE1 disconnected
Control the Idle Fuel Cut Prohibit Prohibit idling fuel cut control ON/OFF - Control the ETCS Open/Close Slow Speed Throttle actuator ON: Throttle valve opens slowly This test is possible when the following conditions are met:
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Ignition switch ON
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Engine does not start
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Fully depressing accelerator pedal (accelerator pedal position: 58 degrees or more)
Control the ETCS Open/Close Fast Speed Throttle actuator ON: Throttle valve opens fast Same as above Control the Cylinder #1 Fuel Cut Cylinder #1 injector fuel cut ON/OFF This test is possible during vehicle stopping and engine idling Control the Cylinder #2 Fuel Cut Cylinder #2 injector fuel cut ON/OFF Same as above Control the Cylinder #3 Fuel Cut Cylinder #3 injector fuel cut ON/OFF Same as above Control the Cylinder #4 Fuel Cut Cylinder #4 injector fuel cut ON/OFF Same as above Control the Cylinder #5 Fuel Cut Cylinder #5 injector fuel cut ON/OFF Same as above Control the Cylinder #6 Fuel Cut Cylinder #6 injector fuel cut ON/OFF Same as above Control the VVT Linear (Bank 1) Control the VVT (bank 1) -128 to 127%
This valve added to present OCV control duty
100%: Maximum advance
-100%: Maximum retard
Engine stalls or rough idles when the VVT actuator is operated at 100%
This test is possible during idle
Control the VVT Linear (Bank 2) Control the VVT (bank 2) -128 to 127%
This valve added to present OCV control duty
100%: Maximum advance
-100%: Maximum retard
Engine stalls or rough idles when the VVT actuator is operated at 100%
This test is possible during idle
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