Система Ecd Неравномерный Холостой Ход Или Чрезмерная Вибрация Двигателя. Corolla Auris

WIRING DIAGRAM

DESCRIPTION

INSPECTION PROCEDURE

CHECK MALFUNCTION CONDITION

CHECK HARNESS AND CONNECTOR IN ENGINE COMPARTMENT

PERFORM CONFIRMATION DRIVING PATTERN

CHECK DTC OUTPUT (RELATING TO ENGINE)

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FUEL LEAK TEST)

READ VALUE OF DIESEL TURBO PRESSURE SENSOR, MASS AIR FLOW METER, AND FUEL PRESSURE SENSOR

READ VALUE OF INJECTOR (INJECTION FEEDBACK VAL AND INJECTION VOLUME)

CHECK INJECTOR COMPENSATION CODE

RESET ECM

CHECK ENGINE MOUNTING INSULATOR

CHECK INTAKE SYSTEM

CHECK EGR VALVE ASSEMBLY

INSPECT DIESEL THROTTLE BODY ASSEMBLY

IDENTIFY MALFUNCTIONING CYLINDER INJECTOR

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTIONING CYLINDER)

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTION)

CHECK CYLINDER COMPRESSION PRESSURE

CHECK MALFUNCTIONING CYLINDER'S INJECTOR FOR DEPOSITS

CLEAN INJECTOR

READ VALUE OF INJECTOR ASSEMBLY (INJECTION FEEDBACK VAL AND INJECTION VOLUME)

CHECK INJECTORS FOR DEPOSITS (EXCEPT FUEL ADDITION INJECTOR)

CLEAN INJECTOR

READ VALUE OF INJECTOR (INJECTION FEEDBACK VAL AND INJECTION VOLUME)

INSPECT COMMON RAIL ASSEMBLY (FUEL PRESSURE SENSOR)

INSPECT SUPPLY PUMP ASSEMBLY

WIRING DIAGRAM

DESCRIPTION

УКАЗАНИЕ:

1. Rough idling and excessive engine vibrations are checked in this troubleshooting procedure.
   
2. Specified values in the following troubleshooting flowchart are for reference only. Variations in the Data List result values may occur depending on the measuring conditions or the vehicle's age. Do not judge the vehicle to be normal even when the Data List values indicate a standard level. There are possibly some concealed factors of the malfunction.
   
3. Check that the vehicle has not been modified in any way prior to the vehicle inspection.
   

INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:

1. After replacing the supply pump, the ECM needs initialization (See page Нажмите здесь).
   
2. After replacing the injector, the ECM needs registration (See page Нажмите здесь).
   

УКАЗАНИЕ:

1. Before troubleshooting, conduct the following:
   
1. Check the fuel quality.
   
2. Check the fuel for air.
   
3. Check the fuel system for blockages.
   
4. Check the air filter.
   
5. Check the engine oil.
   
6. Check the engine coolant.
   
7. Check the engine idling speed and the maximum engine speed.
   
8. Check the vacuum pump.
   

1. Identify when shuddering occurs.
   
   

   Result:

   
   

   Result	Proceed to
   Driving condition: When idling	A
   Driving condition: When engaging engine clutch at vehicle start	B (Clutch system shudders)

1. Check the wire harness and connector connections of the common rail system components.
   

   УКАЗАНИЕ:

   Check the following components and systems:

   1. Sensors
      
   2. Supply pump
      
   3. Common rail
      
   4. Injectors
      
   5. EDU
      
   6. Turbocharger system
      
   7. Intake and exhaust system
      

   OK:

   The wire harnesses and connectors are connected securely.
   

УКАЗАНИЕ:

Drive the vehicle according to the driving pattern below to allow the ECM to set DTCs relating to malfunctions of the fuel system, EGR system, and throttle valve. If DTCs are set, the problem areas can be identified.

1. Enter CHECK MODE (See page Нажмите здесь).
   

2. Fully warm up the engine.
   

3. Allow the engine to idle for 5 minutes or more.
   

4. Drive the vehicle at more than 40 km/h (25 mph) for 1 minute or more (procedure "A").
   

5. Decelerate and stop the vehicle (procedure "B").
   

6. Repeat procedure "A" and procedure "B" 4 times or more.
   

7. Stop the engine and wait for at least 10 seconds (procedure "C").
   

8. Repeat procedure "A" and procedure "C" described above to set DTCs relating to the EGR system and throttle valve.
   

9. Drive the vehicle at more than 70 km/h (43 mph) for at least 1 minute (to set DTCs relating to the supply pump).
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch on (IG) and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / DTC.
   

4. Read pending DTCs.
   
   

   Result:

   
   

   Result	Proceed to
   DTC is not output	A
   Engine related DTCs	B

УКАЗАНИЕ:

By performing this Active Test, the engine speed is maintained at 2000 rpm and the common rail internal fuel pressure is raised to the maximum operating pressure. As a result, a fuel leak check can be conducted while retaining the high common rail pressure.

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Test the Fuel Leak.
   

4. Visually check the supply pump, injector, and fuel line located between the supply pump and common rail for fuel leaks and fuel pressure leaks. Also, perform the same check on the fuel line between the common rail and the injector.
   

   УКАЗАНИЕ:

   There may be fuel leaks inside the components, such as the supply pump.

   OK:

   No fuel leakage
   

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine, warm it up and turn the tester on.
   

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

4. Select the following menu items in order and read the values.
   

   1. MAP
      
   2. MAF
      
   3. Fuel Press
      
   
   

   Standard value:

   
   

   Item	Engine Speed *1	Standard Range	Description
   MAP *2	Ignition switch on (IG) (engine stopped)	Same as atmospheric pressure	Intake manifold internal pressure detected by diesel turbo pressure sensor
   	Idling	85 to 94 kPa (638 to 705 mmHg, 25.10 to 27.76 in.Hg)
   	3000 rpm (no engine load)	120 to 140 kPa (900 to 1050 mmHg, 35.44 to 41.34 in.Hg)
   	3000 rpm (driving with full throttle acceleration) *5	239 to 255 kPa (1793 to 1913 mmHg, 70.58 to 75.30 in.Hg)
   MAF *2, *4	Ignition switch on (IG) (engine stopped)	Less than 0.55 g/sec.	Intake air volume detected by mass air flow meter
   	Idling	2.5 to 5.52 g/sec.
   	3000 rpm (no engine load)	49 to 60 g/sec.
   	3000 rpm (driving with full throttle acceleration) *5	124 to 136 g/sec.
   Fuel Press*3	Idling	37 to 43 MPa	Common rail internal fuel pressure
   	2000 rpm (no engine load)	50 to 56 MPa
   	3000 rpm (no engine load)	60 to 66 MPa
   	3000 rpm (driving with full throttle acceleration) *5	150 to 156 MPa

   
   

   Result:

   
   

   Item	Result	Proceed to
   MAP, MAF and Fuel press	Standard range	A
   MAP and MAF	Outside standard range	B
   Only MAP	Outside standard range	C
   Only MAF	Outside standard range	D
   Only Fuel Press	Outside standard range	E

   УКАЗАНИЕ:

   *1: The air conditioner switch and all accessory switches should be OFF with a fully warmed-up engine.

   *2: This value is indicated when the ambient temperature is 25°C (77°F), the atmospheric pressure is 101 kPa (758 mmHg, 29.83 in.Hg), and the stable boost pressure is maintained for approximately 10 seconds.

   *3: This value is indicated when the ambient temperature is 25°C (77°F), the atmospheric pressure is 101 kPa (758 mmHg, 29.83 in.Hg), and the vehicle is accelerated for approximately 10 seconds.

   *4: When the mass air flow meter malfunctions, the MAF output may deviate from the standard (referential) range when the engine idles and is accelerated from 3000 to 4000 rpm with full throttle acceleration.

   *5: Fully depress the accelerator pedal with the vehicle creeping at idle speed in 2nd gear.

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine, warm it up and turn the tester on.
   

3. Select the following menu items in order and read the values.
   

   1. Injection Feedback Val #1, #2, #3, and #4
      
   2. Injection Volume
      
   
   

   Standard value:

   
   

   Item	Engine Speed*	Standard Range	Description
   Injection Feedback Val #1	Idling	-3.5 to 3.5 mm3	Value of injector fuel injection volume compensates for differences in combustion condition of cylinders Positive values indicate control which corrects combustion degradation Negative values indicate control which corrects excessive combustion pressure If problems exist, "Injection Feedback Val" may deviate from the -3.5 and 3.5 mm3 range
   Injection Feedback Val #2	Idling	-3.5 to 3.5 mm3
   Injection Feedback Val #3	Idling	-3.5 to 3.5 mm3
   Injection Feedback Val #4	Idling	-3.5 to 3.5 mm3
   Injection Volume	Idling	2.8 to 7.3 mm3	Fuel injection volume value controlled by ECU Controls NE signal, fuel temperature, engine coolant temperature, intake air temperature, boost pressure, atmospheric pressure, and EGR volume If problems exist, "Injection Volume" may be outside the standard range

   
   

   Result:

   
   

   Result	Proceed to
   Standard range	A
   Injection Feedback Val #1 to #4 and/or Injection Volume outside standard range	B

   УКАЗАНИЕ:

   *: The air conditioner switch and all accessory switches should be OFF with a fully warmed-up engine.

1. Read the injector compensation code (See page Нажмите здесь).
   

   УКАЗАНИЕ:

   If the injector compensation code is not correctly registered, it may cause malfunctions (See page Нажмите здесь).

2. Check the injector compensation code.
   

   OK:

   Compensation code of the installed injector is same as the code registered in the ECM.
   

1. Disconnect the cable from the negative (-) battery terminal for at least 2 minutes.
   

2. Reconnect the cable to the negative (-) battery terminal.
   

3. Check whether the malfunction has been successfully repaired by performing a driving test using the freeze frame data recorded at the time the malfunction occurred.
   

   OK:

   Malfunction has been repaired successfully.
   

1. Visually check that the engine mounting insulator is installed correctly and is not crooked or twisted.
   

   OK:

   No abnormalities
   

1. Check for air leakage and blockage between the air cleaner and turbocharger.
   

2. Check for air leakage and blockage between the turbocharger and intake manifold.
   

   OK:

   No air leakage or blockage
   

1. Check the EGR valve assembly (See page Нажмите здесь).
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch on (IG) and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Diesel Throttle Angle.
   

4. Read the value.
   

   Standard pressure:

   Ignition switch on (IG):

   0%
   

   Idling (warmed up engine):

   95%
   

   Accelerator pedal fully depressed:

   0%
   

   
   

   Result:

   
   

   Result	Proceed to
   NG	A
   OK	B

1. Follow the instructions in the table below according to the check result of the intelligent tester.
   

   УКАЗАНИЕ:

   This operation is based on the premise that the common rail pressure is normal.

   
   

   Standard value:

   
   

   Item	Engine Speed*	Reference Value
   Injection Feedback Val #1 to #4	Idling	-3.5 to 3.5 mm3
   Injection Volume	Idling	2.8 to 7.3 mm3

   УКАЗАНИЕ:

   *: The air conditioner switch and all accessory switches should be OFF, and the engine should be fully warmed up.

   
   

   Result:

   
   

   Injection Feedback Val #1 to #4	Injection Volume
   	Less than 2.8 mm3	Between 2.8 and 7.3 mm3 (Normal)	More than 7.3 mm3
   3.5 mm3 or more, -3.5 mm3 or less	A	B	B
   Between -3.5 and 3.5 mm3	-	Normal	C*

   
   

   Proceed to	Inspection Area	Description
   A	Inspect and repair cylinder injector with revised injection volume of less than -3.5 mm3: Perform power balance inspection and identify malfunctioning cylinder Replace malfunctioning cylinder injector	Abnormal value cylinder injector injects excessively large quantity of fuel
   B	Identify malfunctioning cylinders by conducting power balance inspection: Perform power balance inspection to identify malfunctioning cylinders Clean malfunctioning cylinder injector, then check and repair it	Abnormal value cylinder injector injects excessively large quantity of fuel Fuel injection volume too low due to injector nozzle being blocked by deposits Abnormal value cylinder injector compression decreases Abnormal value cylinder injector injects excessively large quantity of fuel
   C	Inspect and repair all cylinder injectors: Clean all cylinder injectors, inspect, and repair them	All cylinder injectors inject excessively small quantity of fuel: Fuel injection volume too low due to all cylinder injector nozzles being blocked by deposits

   УКАЗАНИЕ:

   *: When the Injection Volume displayed on the tester is large despite the Fuel Press and Injection Feedback Val #1 to #4 in the Data List being normal, the injector may be clogged. In this case, there may be deposits inside or outside the tip of the injector.

   1. Despite the injector functioning normally, the indicated Injection Feedback Val #1 to #4 value may be outside the normal operating range due to compensation for other problems (such as low compression).
      
   2. Injection Feedback Val #1 to #4 is the value used to correct the fuel injection volumes of each cylinder, in order to optimize (compensate for the unevenness between) all the cylinder combustion conditions. If any of the cylinders malfunction, the fuel injection volumes for the normal cylinders are corrected simultaneously. As a result, the Injection Feedback Val #1 to #4 may deviate from the standard range.
      

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Cylinder #1, #2, #3, and #4 Fuel Cut.
   

4. Check the four cylinders in sequence to identify any faulty cylinders by performing the power balance inspection.
   

   УКАЗАНИЕ:

   1. If the engine idle does not change when an injector is disabled, the cylinder being tested is malfunctioning.
      
   2. If the cylinder being tested is normal, there will be a significant change in idle speed when the fuel injection is stopped for that cylinder.
      

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Cylinder #1, #2, #3, and #4 Fuel Cut.
   

4. Check the four cylinders in sequence to identify any faulty cylinders by performing the power balance inspection.
   

   УКАЗАНИЕ:

   1. If the engine idle does not change when an injector is disabled, the cylinder being tested is malfunctioning.
      
   2. If the cylinder being tested is normal, there will be a significant change in idle speed when the fuel injection is stopped for that cylinder.
      

1. Check the cylinder compression pressure (See page Нажмите здесь).
   

   Standard pressure:

   2700 kPa (27.5 kgf/cm², 392 psi)
   

   Minimum pressure:

   2200 kPa (22.5 kgf/cm², 320 psi)
   

   Difference between each cylinder:

   500 kPa (5.0 kgf/cm², 71 psi)
   

УКАЗАНИЕ:

If an injector is contaminated with the deposits, the fuel injection volume deviates from the standard range. This may cause malfunctions.

1. Check the injector for any deposits.
   
   

   Result:

   
   

   Injector Condition	Proceed to
   Deposits	A
   No deposits	B

1. Wipe away the deposits from the tips of the injectors.
   

   УКАЗАНИЕ:

   1. Solvent or carbon removal agents help remove the deposits easily.
      
   2. Exercise extreme care not to damage the injectors while wiping off the deposits.
      

1. Reinstall the injector to the cylinder head.
   

2. Connect the intelligent tester to the DLC3.
   

3. Turn the ignition switch on (IG) and turn the tester on.
   

4. Start the engine and warm it up.
   

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

6. Select the following menu items in order and read the values.
   

   1. Injection Feedback Val #1, #2, #3, and #4
      
   2. Injection Volume
      
   
   

   Standard value:

   
   

   Item	Engine Speed*	Reference Value
   Injection Feedback Val #1 to #4	Idling	-3.5 to 3.5 mm3
   Injection Volume	Idling	2.8 to 7.3 mm3

   УКАЗАНИЕ:

   *: The air conditioner switch and all accessory switches should be OFF, and the engine should be fully warmed up. When the values are outside the standard range, deposits inside the injector may be causing the problem.

   OK:

   The values are within the standard range.
   

УКАЗАНИЕ:

If an injector is contaminated with the deposits, the fuel injection volume deviates from the standard range. This may cause malfunctions.

1. Check the injector for any deposits.
   
   

   Result:

   
   

   Result	Proceed to
   Injection condition: Deposits	A
   Injection condition: No deposits	B

1. Wipe away the deposits from the tips of the injectors.
   

   УКАЗАНИЕ:

   1. Solvent or carbon removal agents help remove the deposits easily.
      
   2. Exercise extreme care not to damage the injectors while wiping off the deposits.
      

1. Reinstall the injector to the cylinder head.
   

2. Connect the intelligent tester to the DLC3.
   

3. Turn the ignition switch on (IG) and turn the tester on.
   

4. Start the engine and warm it up.
   

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

6. Select the following menu items in order and read the values.
   

   1. Injection Feedback Val #1, #2, #3, and #4
      
   2. Injection Volume
      
   
   

   Standard value:

   
   

   Item	Engine Speed*	Reference Value
   Injection Feedback Val #1 to #4	Idling	-3.5 to 3.5 mm3
   Injection Volume	Idling	2.8 to 7.3 mm3

   УКАЗАНИЕ:

   *: The air conditioner switch and all accessory switches should be OFF, and the engine should be fully warmed up. When the values are outside the standard range, deposits inside the injector may be causing the problem.

   OK:

   The values are within the standard range.
   

1. Disconnect the fuel pressure sensor connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   5 (PR) - 4 (E2)	Always	16.4 kΩ or less
   2 (PR2) - 3 (E2S)	Always	16.4 kΩ or less
   5 (PR) - 6 (VC)	Always	3 kΩ or less
   2 (PR2) - 1 (VCS)	Always	3 kΩ or less

3. Reconnect the fuel pressure sensor connector.
   

1. Disconnect the suction control valve connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   1 - 2	20°C (68°F)	1.9 to 2.3 Ω

3. Reconnect the suction control valve connector.