Система Ecd Двигатель Запускается С Трудом Или Глохнет. Corolla Auris

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT (RELATED TO ENGINE)

CHECK FUEL FILTER ASSEMBLY

CHECK ENGINE CRANKING CONDITION

READ VALUE OF FUEL PRESSURE SENSOR

CHECK IF INITIAL COMBUSTION OCCURS

CHECK GLOW INDICATOR LIGHTING TIME AND AFTER-GLOW TIME

READ VALUE OF FUEL PRESSURE SENSOR

CHECK AIR INTAKE SYSTEM AND EXHAUST SYSTEM

READ VALUE OF FUEL PRESSURE SENSOR AND INJECTOR

CHECK CYLINDER COMPRESSION PRESSURE

CHECK HARNESS AND CONNECTOR (INJECTOR - EDU)

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (CONTROL CYLINDER FUEL CUT)

CHECK IF FUEL IS BEING SUPPLIED TO SUPPLY PUMP

READ VALUE USING INTELLIGENT TESTER (ENGINE COOLANT TEMPERATURE)

READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)

CHECK HARNESS AND CONNECTOR (STARTER RELAY - ECM)

READ VALUE USING INTELLIGENT TESTER (FUEL PRESSURE)

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

INSPECT CRANKSHAFT POSITION SENSOR

INSPECT COMMON RAIL ASSEMBLY (FUEL PRESSURE SENSOR)

CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM)

REPLACE ECM

WIRING DIAGRAM

INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:

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

УКАЗАНИЕ:

Specified values in the following troubleshooting flowchart are for reference only. Variations in the Data List values may occur depending on the measuring conditions or the vehicle's age. Do not assume the vehicle is normal when the Data List outputs standard values. There may be concealed factors of the malfunction.

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 the DTCs.
   
   

   Result:

   
   

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

1. Check that the fuel filter is not clogged.
   

   OK:

   The fuel filter is not clogged.
   

1. Check the engine cranking condition.
   

2. Compare the cranking condition with that of a normal engine of the same model, and carefully check if there is any difference between them.
   

   OK:

   Engine cranking condition is normal.
   

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 / Data List / Fuel Press.
   

4. Read the value.
   
   

   Standard value:

   
   

   Item	Inspection Condition	Reference Value
   Fuel Press	Cranking, and engine coolant temperature 0°C (32°F) or more	25 to 35 MPa

1. Check if initial combustion occurs.
   
   

   Result:

   
   

   Result	Proceed to
   No initial combustion with cold engine	A
   No initial combustion with hot engine	B
   Initial combustion occurs	C

1. Check the lighting duration of the glow indicator light (See page Нажмите здесь).
   

   OK:

   Indicator lighting time is normal.
   

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 / Data List / Fuel Press.
   

4. Read the values.
   

   OK:

   The internal fuel pressure of the common rail is within the specification below.
   

   Engine Speed	Fuel Pressure
   Idling	Approximately 35 to 45 MPa
   3000 rpm (No engine load)	Approximately 57 to 68 MPa

1. Inspect the engine condition (See page Нажмите здесь).
   

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 / Data List.
   

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

   1. Fuel Press
      
   2. Injection Volume
      
   
   

   Standard value:

   
   

   Item	Engine Speed*	Reference Value
   Fuel Press	Idling	35 to 45 MPa
   Fuel Press	2000 rpm (No engine load)	51 to 61 MPa
   Fuel Press	3000 rpm (No engine load)	57 to 68 MPa
   Injection Volume	Idling	3.2 to 10.1 mm3
   Injection Volume	2000 rpm (No engine load)	3.2 to 8.7 mm3
   Injection Volume	3000 rpm (No engine load)	5.7 to 10.7 mm3

   УКАЗАНИЕ:

   *: If no idling conditions are specified, the shift lever should be in the neutral position, and the air conditioner switch and all accessory switches should be OFF.

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

   Standard pressure:

   2500 kPa (25.5 kgf/cm², 362 psi)
   

   Minimum pressure:

   2200 kPa (22.5 kgf/cm², 320 psi)
   

   Difference between each cylinder:

   500 kPa (5.0 kgf/cm², 71 psi)
   

1. Disconnect the injector connectors.
   

2. Disconnect the EDU connector.
   

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

   Standard resistance (Check for open):

   Tester Connection	Condition	Specified Condition
   B9-1 - B48-4 (INJ1)	Always	Below 1 Ω
   B11-1 - B48-2 (INJ2)	Always	Below 1 Ω
   B10-1 - B48-1 (INJ3)	Always	Below 1 Ω
   B12-1 - B48-3 (INJ4)	Always	Below 1 Ω
   B9-2 - B48-5 (COM1)	Always	Below 1 Ω
   B10-2 - B48-6 (COM2)	Always	Below 1 Ω
   B11-2 - B48-6 (COM2)	Always	Below 1 Ω
   B12-2 - B48-5 (COM1)	Always	Below 1 Ω

   Standard resistance (Check for short):

   Tester Connection	Condition	Specified Condition
   B9-1 or B48-4 (INJ1) - Body ground	Always	10 kΩ or higher
   B11-1 or B48-2 (INJ2) - Body ground	Always	10 kΩ or higher
   B10-1 or B48-1 (INJ3) - Body ground	Always	10 kΩ or higher
   B12-1 or B48-3 (INJ4) - Body ground	Always	10 kΩ or higher
   B9-2 or B48-5 (COM1) - Body ground	Always	10 kΩ or higher
   B10-2 or B48-6 (COM2) - Body ground	Always	10 kΩ or higher
   B11-2 or B48-6 (COM2) - Body ground	Always	10 kΩ or higher
   B12-2 or B48-5 (COM1) - Body ground	Always	10 kΩ or higher

4. Reconnect the injector connectors.
   

5. Reconnect the EDU connector.
   

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 engine idle speed while the fuel injection to each cylinder is cut using the tester.
   
   

   Result:

   
   

   Result	Proceed to
   Engine idling condition: Becomes unstable	A
   Engine idling condition: Does not change	B

   УКАЗАНИЕ:

   Replace the injector mounted on the cylinder that causes no significant idle speed change.

1. Disconnect the inlet hose from the supply pump.
   

2. Operate the priming pump and check that the fuel is being supplied to the supply pump.
   

   OK:

   Fuel is properly supplied to the supply pump when the priming pump is operated.
   

3. Reconnect the inlet hose.
   

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 / Data List / Coolant Temp.
   

4. Read the value.
   

   Standard value:

   Between 75 and 95°C (167 and 203°F) with warm engine
   

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 / Data List / Engine Speed.
   

4. Read the value.
   

   Standard value:

   Between 750 to 850 rpm with warm engine (air conditioner switch OFF)
   

1. Remove the ST relay from the No. 5 relay block.
   

2. Disconnect the ECM connector.
   

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

   Standard resistance (Check for open):

   Tester Connection	Condition	Specified Condition
   ST relay terminal 1 - A50-43 (STA)	Always	Below 1 Ω

   Standard resistance (Check for short):

   Tester Connection	Condition	Specified Condition
   ST relay terminal 1 or A50-43 (STA) - Body ground	Always	10 kΩ or higher

4. Reinstall the ST relay.
   

5. Reconnect the ECM connector.
   

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 / Data List / Fuel Press.
   

4. Read the value.
   

   Standard value:

   35 to 45 MPa engine idling
   

1. Remove the engine coolant temperature sensor.
   

2. Measure the resistance of the sensor.
   

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   1 - 2	20°C (68°F)	2.32 to 2.59 kΩ
   1 - 2	80°C (176°F)	0.310 to 0.326 kΩ

   ПРИМЕЧАНИЕ:

   When checking the sensor in water, keep the terminals dry. After the check, wipe the sensor dry.

   УКАЗАНИЕ:

   Alternative procedure: Connect an ohmmeter to the installed engine coolant temperature sensor and read the resistance. Use an infrared thermometer to measure the engine temperature in the immediate vicinity of the sensor. Compare these values against the resistance/ temperature graph. Change the engine temperature (warm up or cool down) and repeat the test.

3. Reconnect the engine coolant temperature sensor.
   

1. Disconnect the crankshaft position sensor connector.
   

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

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   1 (NE) - 2 (NE-)	20°C (68°F)	950 to 1250 Ω

3. Reconnect the crankshaft position sensor connector.
   

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
   2 (PR) - 1 (E2)	Always	16.4 kΩ or less
   2 (PR) - 3 (VC)	Always	3 kΩ or less

3. Reconnect the fuel pressure sensor connector.
   

1. Disconnect the fuel pressure sensor connector.
   

2. Disconnect the ECM connector.
   

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

   Standard resistance (Check for open):

   Tester Connection	Condition	Specified Condition
   B43-2 (PR) - B31-67 (PCR1)	Always	Below 1 Ω
   B43-3 (VC) - B31-69 (VCM)	Always	Below 1 Ω
   B43-1 (E2) - B31-91 (E2M)	Always	Below 1 Ω

   Standard resistance (Check for short):

   Tester Connection	Condition	Specified Condition
   B43-2 (PR) or B31-67 (PCR1) - Body ground	Always	10 kΩ or higher
   B43-3 (VC) or B31-69 (VCM) - Body ground	Always	10 kΩ or higher
   B43-1 (E2) or B31-91 (E2M) - Body ground	Always	10 kΩ or higher

4. Reconnect the fuel pressure sensor connector.
   

5. Reconnect the ECM connector.
   

1. Replace the ECM (See page Нажмите здесь).
   

   ПРИМЕЧАНИЕ:

   After replacing the ECM, the new ECM needs registration (See page Нажмите здесь) and initialization (See page Нажмите здесь).

2. Check if the engine starts smoothly or if the engine stalls.
   

   OK:

   The engine starts smoothly and does not stall.