Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 2Zr-Fe. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ACTIVATE THE PURGE VSV CONTROL)

INSPECT PURGE VSV

INSPECT PURGE VSV (POWER SOURCE VOLTAGE)

CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

INSPECT FUSE (EFI NO. 2 FUSE)

DTC P0443 Evaporative Emission Control System Purge Control Valve Circuit


DESCRIPTION

To reduce hydrocarbon emissions, evaporated fuel from the fuel tank is routed through a charcoal canister to the intake manifold for combustion in the cylinders.
The ECM changes the duty signals to the purge VSV so that the intake amount of hydrocarbon emissions is appropriate for the driving conditions (engine load, engine speed, vehicle speed, etc.) after the engine is warmed up.

DTC No.
DTC Detection Condition
Trouble Area
P0443
Terminal voltage of ECM output circuit does not correspond with drive signals from ECM to purge VSV
(1-trip detection logic)
  1. Open or short in purge VSV circuit
  2. Purge VSV
  3. ECM

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit


INSPECTION PROCEDURE

УКАЗАНИЕ:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ACTIVATE THE PURGE VSV CONTROL)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

  1. Connect the intelligent tester to the DLC3.

  1. Disconnect the vacuum hose of the purge VSV from the charcoal canister.

  1. Start the engine.

  1. Turn the tester on.

  1. Select the following menu items: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.

  1. When the purge VSV is operated using the intelligent tester, check whether the disconnected hose applies suction to your finger.

    OK:
    Tester Operation
    		Specified Condition
    VSV is ON
    		Disconnected hose applies suction to finger
    VSV is OFF
    		Disconnected hose applies no suction to finger

  1. Reconnect the vacuum hose of the purge VSV to the charcoal canister.



NG
Перейдите к шагу 2
OK

CHECK FOR INTERMITTENT PROBLEMS (Нажмите здесь)

2.INSPECT PURGE VSV


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit

  1. Disconnect the purge VSV connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B19-1 - B19-2
    		20°C (68°F)
    		23 to 26 Ω

  1. Reconnect the purge VSV connector.



NG
REPLACE PURGE VSV (Нажмите здесь)
OK


3.INSPECT PURGE VSV (POWER SOURCE VOLTAGE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit

  1. Disconnect the purge VSV connector.

  1. Turn the ignition switch on (IG).

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B19-2 - Body ground
    		Ignition switch on (IG)
    		9 to 14 V

  1. Reconnect the purge VSV connector.



NG
Перейдите к шагу 5
OK


4.CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit

  1. Disconnect the purge VSV connector.

  1. Disconnect the ECM connector.

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

    Standard resistance (Check for open):
    Tester Connection
    		Condition
    		Specified Condition
    B19-2 - B31-49 (PRG)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B19-2 or B31-49 (PRG) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the purge VSV connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - ECM)
OK

REPLACE ECM (Нажмите здесь)

5.INSPECT FUSE (EFI NO. 2 FUSE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0443 Evaporative Emission Control System Purge Control Valve Circuit

  1. Remove the EFI No. 2 fuse from the engine room relay block.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    EFI No. 2 fuse
    		Always
    		Below 1 Ω

  1. Reinstall the EFI No. 2 fuse.



NG
REPLACE FUSE (EFI NO. 2 FUSE)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - ENGINE ROOM JUNCTION BLOCK (EFI MAIN RELAY))