Система Ecd Выходная Цепь Vc. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 1Nd-Tv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK MIL CONDITION

CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

CHECK MIL (INTAKE SHUTTER POSITION SENSOR)

CHECK MIL (MANIFOLD ABSOLUTE PRESSURE SENSOR)

CHECK MIL (ACCELERATOR PEDAL POSITION SENSOR)

CHECK MIL (FUEL PRESSURE SENSOR)

CHECK HARNESS AND CONNECTOR (VC CIRCUIT)

СИСТЕМА ECD - Выходная цепь VC


DESCRIPTION

The ECM constantly generates 5 V of power from the battery voltages supplied to the +B (BATT) terminal to operate the microprocessor while the ignition switch is in the ON position (engine running). The ECM also provides this power to the sensors through the VC output circuit.

COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd.Система Ecd Выходная Цепь Vc

When the VC circuit is short-circuited, the microprocessor in the ECM and sensors that are supplied with power through the VC circuit are deactivated because the power is not supplied from the VC circuit. Under this condition, the system does not start up and the MIL does not illuminate even if the system malfunctions.
УКАЗАНИЕ:
Under normal conditions, the MIL is illuminated for several seconds when the ignition switch is first turned to the ON position. The MIL goes off when the engine is started.

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd.Система Ecd Выходная Цепь Vc


INSPECTION PROCEDURE

1.CHECK MIL CONDITION

  1. Check that Malfunction Indicator Lamp (MIL) illuminates when turning the ignition switch to the ON position.

    OK:
    The MIL illuminates.


NG
Перейдите к шагу 2
OK

SYSTEM OK

2.CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester on.

  1. Check the communication between the intelligent tester and ECM.

    Result:
    Result
    		Proceed to
    Communication is possible
    		A
    Communication is impossible
    		B


A
GO TO MIL CIRCUIT (Нажмите здесь)
B


3.CHECK MIL (INTAKE SHUTTER POSITION SENSOR)

  1. Disconnect the diesel throttle body connector.

  1. Turn the ignition switch to the ON position.

  1. Check the MIL.

    Result:
    Result
    		Proceed to
    MIL is illuminated
    		A
    MIL is not illuminated
    		B

  1. Reconnect the diesel throttle body connector.



A
REPLACE DIESEL THROTTLE BODY ASSEMBLY (Нажмите здесь)
B


4.CHECK MIL (MANIFOLD ABSOLUTE PRESSURE SENSOR)

  1. Disconnect the manifold absolute pressure sensor connector.

  1. Turn the ignition switch to the ON position.

  1. Check the MIL.

    Result:
    Result
    		Proceed to
    MIL is illuminated
    		A
    MIL is not illuminated
    		B

  1. Reconnect the manifold absolute pressure sensor connector.



A
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
B


5.CHECK MIL (ACCELERATOR PEDAL POSITION SENSOR)

  1. Disconnect the accelerator pedal position sensor connector.

  1. Turn the ignition switch to the ON position.

  1. Check the MIL.

    Result:
    Result
    		Proceed to
    MIL is illuminated
    		A
    MIL is not illuminated
    		B

  1. Reconnect the accelerator pedal position sensor connector.



A
REPLACE ACCELERATOR PEDAL ASSEMBLY (ACCELERATOR PEDAL POSITION SENSOR) (Нажмите здесь)
B


6.CHECK MIL (FUEL PRESSURE SENSOR)

  1. Disconnect the fuel pressure sensor connector.

  1. Turn the ignition switch to the ON position.

  1. Check the MIL.

    Result:
    Result
    		Proceed to
    MIL is illuminated
    		A
    MIL is not illuminated
    		B

  1. Reconnect the fuel pressure sensor connector.



A
REPLACE COMMON RAIL ASSEMBLY (FUEL PRESSURE SENSOR) (Нажмите здесь)
B


7.CHECK HARNESS AND CONNECTOR (VC CIRCUIT)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd.Система Ecd Выходная Цепь Vc

  1. Disconnect the diesel throttle body connector.

  1. Disconnect the manifold absolute pressure sensor connector.

  1. Disconnect the accelerator pedal connector.

  1. Disconnect the fuel pressure sensor connector.

  1. Disconnect the ECM connectors.

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

    Standard resistance (check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B77-26 (VCS) - Body ground
    		Always
    		10 kΩ or higher
    B77-28 (VVLU) - Body ground
    		Always
    		10 kΩ or higher
    B77-27 (VPIM) - Body ground
    		Always
    		10 kΩ or higher
    A57-34 (VCPA) - Body ground
    		Always
    		10 kΩ or higher
    A57-33 (VCP2) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the diesel throttle body connector, manifold absolute pressure sensor connector, accelerator pedal position sensor connector, and fuel pressure sensor connectors.

  1. Reconnect the ECM connectors.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (Нажмите здесь)