Ecd System Data List / Active Test

  1. READ DATA LIST

  1. PERFORM ACTIVE TEST

  1. SYSTEM CHECK

Ecd System -- Data List / Active Test



READ DATA LIST
HINT:
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.
NOTICE:
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.

  1. Warm up the engine.

  2. Turn the ignition switch OFF.

  3. Connect the intelligent tester to the DLC3.

  4. Turn the ignition switch ON.

  5. Turn the intelligent tester ON.



    6. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System Data List / Active Test

  6. Enter the following menus: Powertrain / Engine and ECT / Data List.

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

  7. Read the Data List.

    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Vehicle Speed
    		Vehicle speed:
    Min.: 0 km/h, Max.: 255 km/h
    		Actual vehicle speed
    		Speed indicated on speedometer
    Engine Speed
    		Engine speed:
    Min.: 0 rpm, Max.: 16,383 rpm
    		700 to 800 rpm: Idling
    		-
    Calculate Load
    		Calculated load by ECM:
    Min.: 0%, Max.: 100%
    1. 11.4 to 16.4%: Idling
    2. 13.1 to 18.9%: Running without load (2,500 rpm)
    		-
    MAF
    		Air flow rate from MAF meter status:
    Min.: 0 gm/s
    Max.: 655.35 gm/s
    1. 5 to 12 gm/s: Idling
    2. 23 to 31 gm/s: Running without load (2,000 rpm)
    		If value approximately 0 gm/s:
    1. Mass air flow meter power source circuit open
    2. VG circuit open or shorted
    If value 167.5 gm/s or more:
    1. EVG circuit open
    Atmosphere Pressure
    		Atmospheric pressure value:
    Min.: 0 kPa
    Max.: 255 kPa
    		Actual atmospheric pressure
    		-
    MAP
    		Absolute pressure inside intake manifold:
    Min.: 0 kPa, Max.: 255 kPa
    1. 90 to 105 kPa: Idling
    2. 100 to 125 kPa:
      Engine running at 3000 rpm
    		-
    Coolant Temp
    		Engine coolant temperature:
    Min.: -40°C, Max.: 140°C
    		80 to 90°C (176 to 194°F):
    After warming up engine
    		If value is -40°C (-40°F) or 140°C (284°F), sensor circuit open or shorted
    Intake Air
    		Intake air temperature:
    Min.: -40°C, Max.: 140°C
    		Equivalent to temperature at location of mass air flow meter
    		If value is -40°C (-40°F) or 140°C (284°F), sensor circuit open or shorted
    Intake Air Temp (Turbo)
    		Intake air temperature after intercooler:
    Min.: -40°C, Max.: 190°C
    		Changes depending on operating conditions
    		-
    Engine Run Time
    		Engine run time:
    Min.: 0 s,
    Max.: 255 s
    		Time after engine started
    		Service data
    Initial Engine Coolant Temp
    		Initial engine coolant temperature:
    Min.: -40°C, Max.: 120°C
    		ECT when engine starts
    		-
    Initial Intake Air Temp
    		Initial intake air temperature:
    Min.: -40°C, Max.: 120°C
    		Intake air temperature when engine starts
    		-
    Battery Voltage
    		Battery voltage:
    Min.: 0 V,
    Max.: 65.535 V
    		9 to 14 V: Idling
    		-
    Alternate Duty Ratio
    		Alternate duty ratio:
    Min.: 0%, Max.: 100%
    1. No electrical load:
      20 to 60%
    1. High electrical load:
      100%
    		-
    Pre Glow
    		Pre-glow operation:
    ON or OFF
    		-
    		This is the ECM command.
    After Glow
    		After-glow operation:
    ON or OFF
    		-
    		This is the ECM command.
    Accel Position
    		Accelerator position status:
    Min.: 0%, Max.: 99.6%
    1. Accelerator pedal released:
      0%
    2. Accelerator pedal depressed:
      100%
    		Read value with ignition switch ON (do not start engine)
    Accel Sens. No.1 Volt %
    		Accelerator position No. 1:
    Min.: 0%, Max.: 100%
    1. Accelerator pedal released:
      8 to 28%
    2. Accelerator pedal depressed:
      51 to 86%
    		Read value with ignition switch ON (do not start engine)
    Accel Sens. No.2 Volt %
    		Accelerator position No. 2:
    Min.: 0%, Max.: 100%
    1. Accelerator pedal released:
      30 to 55%
    2. Accelerator pedal depressed:
      73 to 98%
    		Read value with ignition switch ON (do not start engine)
    Target Throttle Position
    		Target throttle position
    Min.: -128%, Max.: 127%
    1. Throttle valve fully opened:
      0%
    2. Throttle valve fully closed:
      100%
    		If there is a malfunction of the throttle actuator, compare the target and actual throttle position values for troubleshooting.
    Actual Throttle Position
    		Actual diesel throttle position:
    Min.: -128%, Max.: 127%
    		-
    		-
    Throttle Close Learning Val.
    		Throttle fully closed position learned value:
    Min.: 0 deg, Max.: 84 deg
    		-
    		-
    Diesel Throttle Learn Status
    		Diesel throttle learn status:
    OK or NG
    		OK
    		-
    Injection Volume
    		Injection volume:
    Min.: 0 mm3/st, Max.: 1,279.98 mm3/st
    		3 to 10 mm3/st: Idling
    		-
    Inj. FB Vol. for Idle
    		Idle stability status integral control volume:
    Min.: -80 mm3/st, Max.: 79.9975 mm3/st
    		-10 to 10 mm3/st
    		-
    Inj Vol Feedback Learning
    		Injection volume compensation learned value:
    Min.: -10 mm3/st, Max.: 9.92 mm3/st
    		-4.0 to 4.0 mm3/st: Idling
    		-
    Injection Feedback Val #1
    		Injection volume correction for cylinder 1:
    Min.: -10 mm3/st, Max.: 10 mm3/st
    		-3.0 to 3.0 mm3/st: Idling
    1. "Injection Feedback Val" more than 3.0 mm3/st: Injector breakdown is causing injection volume deviation, or insufficient compression is causing poor combustion.
    2. Even if "Injection Feedback Val" for a cylinder is less than -3.0 mm3/st, the cylinder with this value does not necessarily have a problem.
      HINT:
      1. The ECM adjusts each cylinder so that the average "Injection Feedback Val" of the 4 cylinders is approximately 0 mm3/st.
      2. If more than one cylinder has a positive correction value, a normal cylinder may have a value less than -3.0 mm3/st.
    Injection Feedback Val #2
    		Injection volume correction for cylinder 2:
    Min.: -10 mm3/st, Max.: 10 mm3/st
    		-3.0 to 3.0 mm3/st: Idling
    Injection Feedback Val #3
    		Injection volume correction for cylinder 3:
    Min.: -10 mm3/st, Max.: 10 mm3/st
    		-3.0 to 3.0 mm3/st: Idling
    Injection Feedback Val #4
    		Injection volume correction for cylinder 4:
    Min.: -10 mm3/st, Max.: 10 mm3/st
    		-3.0 to 3.0 mm3/st: Idling
    Pilot 1 Injection Period
    		Pilot 1 injection period:
    Min.: 0 μs, Max.: 65,535 μs
    		370 to 470 μs: Idling
    		-
    Pilot 2 Injection Period
    		Pilot 2 injection period:
    Min.: 0 μs, Max.: 65,535 μs
    		400 to 500 μs: Idling
    		-
    Main Injection Period
    		Main injection period:
    Min.: 0 μs, Max.: 65,535 μs
    		450 to 650 μs: Idling
    		-
    After Injection Period
    		After injection period:
    Min.: 0 μs, Max.: 65,535 μs
    		-
    		-
    Pilot 1 Injection Timing
    		Pilot 1 injection timing:
    Min.: -70°CA, Max.: 20°CA
    		-16 to -12°CA: idle after engine warmed up and vehicle is under normal atmospheric pressure
    		-
    Pilot 2 Injection Timing
    		Pilot 2 injection timing:
    Min.: -50°CA, Max.: 20°CA
    		-12 to -6°CA: idle after engine warmed up and vehicle is under normal atmospheric pressure
    		-
    Main Injection Timing
    		Main injection timing:
    Min.: -90°CA, Max.: 90°CA
    		3 to 7°CA: idle after engine warmed up and vehicle is under normal atmospheric pressure
    		-
    After Injection Timing
    		After injection timing:
    Min.: -10°CA, Max.: 50°CA
    		-
    		-
    Injector Memory Error
    		Injector Memory Error:
    No Error or Error
    		No Error
    		If the fuel injector compensation codes are not input into the new ECM, or if a fuel injector compensation code of a different injector model or a compensation code representing a value which exceeds the compensation setting range is input into the new ECM, DTC P1601 is stored and "Injector Memory Error" displays "Error".
    Reju Pilot Quantity Learning
    		Pilot quantity learning prohibition state:
    READY or NG
    		-
    		-
    Pilot Quantity Learning
    		State of "Pilot Quantity Learning":
    Standby / Wait / Learn / Stop / Comple
    		-
    		If "Pilot Quantity Learning" is incomplete, the MIL illuminates and DTC P1601 is stored.
    Injection Pressure Correction
    		Injection pressure correction:
    Min.: -500 mm3/st,
    Max.: 779.9 mm3/st
    		-400 to 400 mm3/st
    		-
    Target Common Rail Pressure
    		Target common rail pressure:
    Min.: 0 kPa, Max.: 655350 kPa
    		30000 to 160000 kPa
    		-
    Fuel Press
    		Fuel pressure:
    Min.: 0 kPa, Max.: 655350 kPa
    		28000 to 40000 kPa: Idling
    		-
    Common Rail Pres Sens 2
    		Common rail pressure sensor (Sub)
    Min.: 0 kPa, Max.: 655350 kPa
    		28000 to 40000 kPa: Idling
    		-
    Fuel Temperature
    		Fuel temperature:
    Min.: -40°C, Max.: 215°C
    		Actual fuel temperature
    		ECD freeze frame data
    Fuel Return Temp
    		Fuel return temperature:
    Min.: -40°C, Max.: 215°C
    		Idling after engine warmed-up: 35 to 85°C
    		If the "Fuel Return Temp" value is not between 35°C (95°F) and 110°C (230°F), "Pilot Quantity Learning" is prohibited.
    Target Pump SCV Current
    		Pump current target final value:
    Min.: 0 mA, Max.: 4000 mA
    		-
    		-
    Pressure Discharge Valve
    		Pressure discharge valve operation:
    ON or OFF
    		ON: Pressure discharge valve open
    		This is the ECM command.
    Target EGR Position
    		EGR valve target opening angle:
    Min.: 0%, Max.: 100%
    		Level surface, engine warmed up and engine idling:
    50 to 100%
    		-
    EGR Close Learn Val.
    		EGR valve lift volume learning value/
    Min.: 0 V, Max.: 5 V
    		-
    		-
    Actual EGR Valve Pos.
    		EGR valve position:
    Min.: 0%, Max.: 100%
    		Idling after engine warmed up:
    40 to 60%
    		-
    EGR Close Lrn. Status
    		EGR valve fully closed position learning status:
    OK or NG
    		OK
    		-
    EGR Operation Prohibit
    		EGR operation prohibit:
    OK or NG
    		OK: Active Test item "Control the EGR Step Position" can be performed
    1. OK: "EGR Valve Control Active Test Possible" Condition.
    2. NG: "Not Possible" Condition.
    EGR Cut VSV
    		EGR Cut VSV:
    ON or OFF
    		-
    		-
    Target Booster Pressure
    		Target booster pressure:
    Min.: 0 kPa, Max.: 320 kPa
    		Idling and vehicle under normal atmospheric pressure:
    pressure: 90 to 105 kPa
    		-
    VN Turbo Command
    		VN turbo command:
    Min.: 0%, Max.: 100%
    		0 to 100%
    		"VN Turbo Command" is a command value.
    VN Turbo Type
    		VN turbo type:
    Not Aul or Commo or Vacuum
    		Commo
    		-
    VN Turbo Max Angle
    		VN turbo max angle:
    Min.: 0%, Max.: 99.6%
    		90%: Idling
    		-
    VN Turbo Min Angle
    		VN turbo min angle:
    Min.: 0%, Max.: 99.6%
    		15 to 25%: Full throttle
    		-
    Starter Signal
    		Starter signal:
    ON or OFF
    		ON: Cranking
    		-
    Neutral Position SW Signal
    		Neutral position switch status:
    ON or OFF
    		ON: Shift lever in neutral
    		-
    Clutch Switch
    		Clutch switch:
    ON or OFF
    		ON: Clutch pedal depressed
    		-
    Stop Light Switch
    		Stop light switch:
    ON or OFF
    1. ON: Brake pedal depressed
    2. OFF: Brake pedal released
    		-
    A/C Signal
    		A/C signal:
    ON or OFF
    		ON: A/C ON
    		-
    Immobiliser Communication
    		Immobiliser communication:
    ON or OFF
    1. ON: Normal
    2. OFF: Engine cannot be started due to immobiliser communication malfunction
    		-
    Check Mode
    		Check mode:
    ON or OFF
    		ON: Check mode ON
    		-
    # Codes (Include History)
    		Number of codes:
    Min.: 0, Max.: 255
    		-
    		Number of detected DTCs
    MIL
    		MIL status:
    ON or OFF
    		ON: MIL ON
    		-
    Time After DTC Cleared
    		Time after DTC cleared:
    Min.: 0 minutes,
    Max.: 65,535 minutes
    		Equivalent to time after DTCs were erased
    		-
    Distance from DTC Cleared
    		Distance after DTC cleared:
    Min.: 0 km,
    Max.: 65,535 km
    		Equivalent to drive distance after DTCs were erased
    		-
    Warmup Cycle Cleared DTC
    		Warmup cycle after DTC cleared:
    Min.: 0,
    Max.: 255
    		-
    		Number of warmup cycles after DTC cleared
    OBD Requirements
    		Identifying OBD requirement
    		-
    		-
    Number of Emission DTC
    		Number of emission DTCs
    		-
    		-
    TC and TE1
    		TC and TE1 terminal of DLC3:
    ON or OFF
    		-
    		Active Test support data
    Engine Start Time
    		Engine start time:
    Min.: 0 ms,
    Max.: 267000 ms
    		-
    		Time necessary for the engine to start.
    Engine Speed (Starter Off)
    		Engine speed when starter off:
    Min.: 0 rpm,
    Max.: 1593 rpm
    		-
    		Engine speed immediately after starting the engine.
    Starter Count
    		Starter on count:
    Min.: 0,
    Max.: 255
    		-
    		Number of times the starter turned on from the time the ignition switch was turned to ON.
    Run Dist of Previous Trip
    		Distance driven during previous trip:
    Min.: 0 km,
    Max.: 326 km
    		-
    		Used to confirm the driving conditions of the previous trip (before the malfunction occurred).
    Electric Duty Feedback Value
    		Electric load feedback value:
    Min.: 0 mm3/st,
    Max.: 39.8 mm3/st
    		0 to 10 mm3/st
    		Expected injection volume increase after the electrical load turns from off to on.
    A/C Duty Feedback Value
    		A/C load feedback value:
    Min.: 0 mm3/st,
    Max.: 39.8 mm3/st
    		0 to 10 mm3/st
    		Expected injection volume increase after the A/C turns from off to on.
    PS Duty Feedback Value
    		Power steering load feedback value:
    Min.: 0 mm3/st,
    Max.: 39.8 mm3/st
    		0 to 10 mm3/st
    		Expected injection volume increase after the power steering turns from off to on.
    Idle Injection Volume (Min)
    		Injection volume feedback learned value:
    Min.: 0 mm3/st,
    Max.: 39.8 mm3/st
    		0 to 5 mm3/st
    1. When the engine is warmed up and in a stable idling condition, this learning will be performed.
    1. Only when the ignition switch is turned off is the learned value updated gradually.
    Swirl Control Valve VSV
    		VSV for Swirl control valve status:
    ON or OFF
    		ON: Idling
    		-
    ACT VSV
    		A/C cut status for Active Test:
    ON or OFF
    		-
    		Active Test support data
    Model Code
    		Model code
    		-
    		Identifying model code:
    Engine Type
    		Engine type
    		-
    		Identifying engine type:
    1KDFTV
    Cylinder Number
    		Cylinder number:
    Min.: 0, Max.: 255
    		-
    		Identifying cylinder number:
    4
    Transmission Type
    		Transmission type
    		-
    		Identifying transmission type:
    MT / ECT 4th
    Destination
    		Destination
    		-
    		Identifying destination:
    V
    Model Year
    		Model year:
    Min.: 1900, Max.: 2155
    		-
    		Identifying mode year:
    20##
    System Identification
    		System Identification
    		-
    		-
    Engine Speed of Cyl #1
    		Engine speed for No. 1 cylinder:
    Min.: 0 rpm, Max.: 51199 rpm
    		"Engine speed" of all cylinders almost same
    1. Output only when the Active Test "Check the Cylinder Compression" is performed.
    2. Indicates the speed of each cylinder when cranking.
    Engine Speed of Cyl #2
    		Engine speed for No. 2 cylinder:
    Min.: 0 rpm, Max.: 51199 rpm
    		"Engine speed" of all cylinders almost same
    		As above
    Engine Speed of Cyl #3
    		Engine speed for No. 3 cylinder:
    Min.: 0 rpm, Max.: 51199 rpm
    		"Engine speed" of all cylinders almost same
    		As above
    Engine Speed of Cyl #4
    		Engine speed for No. 4 cylinder:
    Min.: 0 rpm, Max.: 51199 rpm
    		"Engine speed" of all cylinders almost same
    		As above
    Av Engine Speed of All Cyl
    		Engine speed for all cylinders:
    Min.: 0 rpm, Max.: 51199 rpm
    		-
    		As above
    HINT:
    Normal Condition: If no idling conditions are specified, the shift lever is in the neutral position, and the A/C switch and all accessory switches are OFF.

PERFORM ACTIVE TEST
HINT:
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.
The Data List can be displayed during the Active Test.

  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch ON.

  3. Turn the intelligent tester ON.

  4. Enter the following menus: Powertrain / Engine and ECT / Active Test.

  5. Perform the Active Test.

    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Activate the VSV for Swirl Control Valve
    		Activate VSV for No. 1 Swirl Control Valve
    		ON/OFF
    		-
    Control the A/C cut Signal
    		Control the A/C signal
    		ON/OFF
    		-
    Connect the TC and TE1
    		Turn on TC and TE1 connection
    		ON/OFF
    		-
    Activate the VSV for EGR Cut
    		Activate VSV (for EGR Cut)
    		ON/OFF
    		-
    Control the EGR Step Position
    		Control the EGR valve position
    		0 to 110 Step
    		-
    Test the Turbo Charger Step Motor
    		Activate DC motor for turbocharger
    		40 to 100%
    		Active test available only while engine idling or not running (ignition switch ON)
    Test the Fuel Leak
    		Pressurizes common rail internal fuel pressure, and checks for fuel leaks
    		Stop/Start
    1. Fuel pressure inside common rail pressurized to specified value and engine speed increased to 2,000 rpm when ON is selected
    2. Above conditions preserved while test is ON
    Activate the VN Turbo Open
    		Activate the turbocharger
    		Open/OFF
    		Confirm that the engine is running.
    Activate the EGR Valve Close
    		Activate electric vacuum regulating valve assembly
    		Close/OFF
    		-
    Control the Cylinder#1 Fuel Cut
    		Cut off fuel injection from No. 1 injector
    		ON/OFF
    		Fuel injection stopped while test is ON
    Control the Cylinder#2 Fuel Cut
    		Cut off fuel injection from No. 2 injector
    		ON/OFF
    		As above
    Control the Cylinder#3 Fuel Cut
    		Cut off fuel injection from No. 3 injector
    		ON/OFF
    		As above
    Control the Cylinder#4 Fuel Cut
    		Cut off fuel injection from No. 4 injector
    		ON/OFF
    		As above
    Control the ALL Cylinders Fuel Cut
    		Injector fuel cut for all cylinders
    		ON/OFF
    		Fuel injection stops in all cylinders.
    Check the Cylinder Compression*
    		Check the cylinder compression pressure
    		ON/OFF
    		Fuel injection stops in all cylinders.
HINT:
*: When cranking the engine, the Active Test measures the speed of each cylinder. In this Active Test, the fuel of all cylinders is cut when the engine is cranked for approximately 10 seconds.
At this time, the speed of each cylinder is measured. If the speed of one cylinder is higher than the other cylinders, the compression pressure of that cylinder is determined to be lower than the other cylinders.
  1. Warm up the engine.
  2. Turn the ignition switch off.
  3. Connect the intelligent tester to the DLC3.
  4. Turn the ignition switch to ON and turn the tester on.
  5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Check the Cylinder Compression.
    HINT:
    If the results are not displayed normally, select the display items from the Data List before performing the Active Test. Enter the following menus: Powertrain / Engine and ECT / Data List / Compression / Engine Speed of Cyl #1, Engine Speed of Cyl #2, Engine Speed of Cyl #3, Engine Speed of Cyl #4 and Av Engine Speed of All Cyl.
  6. 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, the Active Test Check the Cylinder Compression will start. Fuel injection for all cylinders is prohibited, and the engine speed measurement of each cylinder will enter standby mode.
  7. Crank the engine for about 10 seconds.
  8. Monitor the engine speed (Engine Speed of Cyl #1 to #4, Av Engine Speed of All Cyl) displayed on the tester.
    HINT:
    At first, the tester display will show the engine speed measurement of each cylinder to be extremely high. After approximately 10 seconds of engine cranking, the engine speed measurement of each cylinder will change to the actual engine speed.
    NOTICE:
    1. After the Active Test Check the Cylinder Compression is turned on, it will automatically turn off after 255 seconds.
    2. When the Check the Cylinder Compression test is off and the engine is cranked, the engine will start.
    3. If the Check the Cylinder Compression test needs to be performed after it is turned on and performed once, press EXIT to return to the Active Test menu screen. Then perform the Check the Cylinder Compression test again.
    4. Use a fully-charged battery.

SYSTEM CHECK


  1. Activate the Pressure Discharge Valve Check

    HINT:
    1. This is the procedure for troubleshooting fuel pressure control malfunctions and combustion problems.
    2. Malfunctions can be determined by checking the fuel pressure when performing a fuel cut and operating the pressure discharge valve with the intelligent tester.
    3. During "Pressure Discharge Valve Check", the intelligent tester measures the fuel pressure while the engine is running, after the engine is stopped, and after the pressure discharge valve operates.

    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.



      3. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50

    3. Turn the tester on.

      NOTICE:
      Confirm the following conditions:
      1. Engine is idling.
      2. Vehicle is stopped.
      3. Fuel pressure is not extremely high (less than 100000 kPa).
      4. Fuel pressure is not extremely low (higher than 26000 kPa).
      5. Fuel pressure sensor is normal.
      6. Battery voltage is more than 8 V.
      HINT:
      When the common rail pressure is unstable, the fuel pressure may decrease to a level where the test cannot be performed. In this situation, wait until the common rail pressure meets the test condition, and then perform the test.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Pressure Discharge Valve Check.



      5. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50

    5. Press "Next".



      6. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50

    6. Press "Next" again to proceed.



      7. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50

    7. Select the "Pressure Discharge Valve Check" type.

      HINT:
      1. "Close to Open Check" opens the pressure discharge valve after the engine stops.
      2. "Always Closed Check" holds the pressure discharge valve closed during the check.

    8. Press "Next".



    9. Perform troubleshooting based on the measurement results.


      Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System Data List / Active Test


      HINT:
      1. During "Close to Open Check", if there is no large change in fuel pressure when the pressure discharge valve is closed while the engine is running and after the engine is stopped, and if the value is 0 kPa when the pressure discharge valve is open, the system is normal.
      2. Perform "Always Closed Check" if the value is not 0 kPa when the pressure discharge valve is open during "Close to Open Check". If the results are the same as during "Close to Open Check", there is a pressure discharge valve operation malfunction.
      3. If the fuel temperature is high, perform "Pressure Discharge Valve Check" after the fuel has cooled to the outside air temperature.
      4. If a large amount of fuel is leaking, the fuel pressure decreases when the engine is stopped. However, the condition of the pressure discharge valve can still be determined by comparing the measurement results of "Close to Open Check" and "Always Closed Check".

      Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System Data List / Active Test