Dtc P0234 Turbocharger / Supercharger Overboost Condition. 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0234 AND/OR P0299)

CHECK VACUUM HOSE CONNECTIONS

CHECK VACUUM HOSES (CHECK VACUUM BETWEEN TURBOCHARGER - VRV FOR TURBO CHARGER)

INSPECT VACUUM REGULATING VALVE ASSEMBLY (OPERATION)

INSPECT VACUUM REGULATING VALVE ASSEMBLY (RESISTANCE)

CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE - ECM)

READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

INSPECT DIESEL THROTTLE BODY ASSEMBLY (INTAKE SHUTTER)

CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)

INSPECT EGR VALVE ASSEMBLY

CHECK HARNESS AND CONNECTOR (EGR VALVE ASSEMBLY - ECM)

INSPECT ECM (EGR VOLTAGE)

CHECK FOR DEPOSIT (EGR VALVE ASSEMBLY)

CHECK FOR DEPOSIT (EGR PASSAGE)

INSPECT FOR EXHAUST GAS LEAK

CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

DTC P0234 Turbocharger / Supercharger Overboost Condition

DTC P0299 Turbocharger / Supercharger Underboost


DESCRIPTION

Refer to DTC P0045 (See page Нажмите здесь).

DTC No.
DTC Detection Condition
Trouble Area
P0234
Actual turbocharger pressure is higher than target pressure for about 10 seconds
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
  1. Vacuum regulating valve
  2. Open or short in vacuum regulating valve circuit
  3. Turbocharger assembly
  4. EGR valve assembly
  5. Diesel throttle body assembly (intake shutter)
  6. Manifold absolute pressure sensor
  7. Vacuum hose
  8. ECM
P0299
Actual turbocharger pressure is lower than target pressure for about 10 seconds
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
УКАЗАНИЕ:
These DTCs are set during steady speed driving with a high engine load (at an engine speed of 3000 rpm or more).

WIRING DIAGRAM

Refer to DTC P0045 for vacuum regulating valve circuit (See page Нажмите здесь).
Refer to DTC P0236 for manifold absolute pressure sensor circuit (See page Нажмите здесь).
Refer to DTC P0400 for EGR valve circuit (See page Нажмите здесь).

INSPECTION PROCEDURE

УКАЗАНИЕ:
Read freeze frame data using an 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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0234 AND/OR P0299)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester on.

  1. Enter the following menu items: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:
    Result
    		Proceed to
    DTC P0234 and/or P0299 are output
    		A
    DTC P0234 and/or P0299 and other DTCs are output
    		B


B
GO TO DTC CHART (Нажмите здесь)
A


2.CHECK VACUUM HOSE CONNECTIONS
УКАЗАНИЕ:
Check the vacuum hose connection of the turbocharger system.
OK:
The vacuum hoses are appropriately connected to each other.


NG
REPAIR OR REPLACE VACUUM HOSES
OK


3.CHECK VACUUM HOSES (CHECK VACUUM BETWEEN TURBOCHARGER - VRV FOR TURBO CHARGER)

  1. Using a three-way connector, connect a vacuum gauge to the hoses between the vacuum regulating valve and turbocharger.

  1. Warm up the engine coolant temperature to more than 75°C (167°F).

  1. Check the vacuum at an idling speed.

    Result:
    Result
    		Proceed to
    0 kPa (0 mmHg, 0 in.Hg) to 50 kPa (375 mmHg, 14.8 in.Hg)
    		A
    Above 50 kPa (375 mmHg, 14.8 in.Hg)
    		B


B
Перейдите к шагу 7
A


4.INSPECT VACUUM REGULATING VALVE ASSEMBLY (OPERATION)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Remove the vacuum regulating valve (See page Нажмите здесь).

  1. Apply 4 dry batteries of 1.5 V in series.

  1. Check that the needle does not move when a vacuum is applied to the vacuum inlet port.

    OK:
    The vacuum regulating valve operates normally.

  1. Reinstall the vacuum regulating valve (See page Нажмите здесь).



NG
REPLACE VACUUM REGULATING VALVE ASSEMBLY (Нажмите здесь)
OK


5.INSPECT VACUUM REGULATING VALVE ASSEMBLY (RESISTANCE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Remove the vacuum regulating valve (See page Нажмите здесь).

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B76-1 - B76-2
    		20°C (68°F)
    		11 to 13 Ω


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B76-1 - Body
    		Always
    		10 kΩ or higher
    B76-2 - Body
    		Always
    		10 kΩ or higher

  1. Reinstall the vacuum regulating valve (See page Нажмите здесь).



NG
REPLACE VACUUM REGULATING VALVE ASSEMBLY (Нажмите здесь)
OK


6.CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the vacuum regulating valve 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
    B76-2 - B77-33 (VN)
    		Always
    		Below 1 Ω
    Standard resistance (check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B76-2 or B77-33 (VN) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the vacuum regulating valve connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (VACUUM REGULATING VALVE - ECM)
OK


7.READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester on.

  1. Enter the following menu items: Powertrain / Engine and ECT / Data List / PIM.

  1. Read the values.

    OK:
    Same value as the actual atmospheric pressure.


NG
Перейдите к шагу 16
OK


8.INSPECT DIESEL THROTTLE BODY ASSEMBLY (INTAKE SHUTTER)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the diesel throttle body assembly connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 (CL+) - 3 (CL-)
    		20°C (68°F)
    		0.3 to 100 Ω

  1. Reconnect the diesel throttle body assembly connector.



NG
REPLACE DIESEL THROTTLE BODY ASSEMBLY (Нажмите здесь)
OK


9.CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the diesel throttle body assembly 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 Connections
    		Condition
    		Specified Condition
    B67-1 (CL+) - B77-13 (LUSL)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B67-1 (CL+) or B77-13 (LUSL) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the diesel throttle body assembly connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)
OK


10.INSPECT EGR VALVE ASSEMBLY


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect EGR valve assembly connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B69-5 (+B2) - B69-4 (EGR1)
    		20°C (68°F)
    		18.2 to 21.0 Ω
    B69-5 (+B2) - B69-6 (EGR3)
    		20°C (68°F)
    		18.2 to 21.0 Ω
    B69-2 (+B1) - B69-1 (EGR2)
    		20°C (68°F)
    		18.2 to 21.0 Ω
    B69-2 (+B1) - B69-3 (EGR4)
    		20°C (68°F)
    		18.2 to 21.0 Ω

  1. Reconnect the EGR valve assembly assembly.



NG
REPLACE EGR VALVE ASSEMBLY (Нажмите здесь)
OK


11.CHECK HARNESS AND CONNECTOR (EGR VALVE ASSEMBLY - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the EGR valve assembly 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
    B69-4 (EGR1) - A57-12 (EGR1)
    		Always
    		Below 1 Ω
    B69-1 (EGR2) - A57-11 (EGR2)
    		Always
    		Below 1 Ω
    B69-6 (EGR3) - A57-31 (EGR3)
    		Always
    		Below 1 Ω
    B69-3 (EGR4) - A57-30 (EGR4)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B69-4 (EGR1) or A57-12 (EGR1) - Body ground
    		Always
    		10 kΩ or higher
    B69-1 (EGR2) or A57-11 (EGR2) - Body ground
    		Always
    		10 kΩ or higher
    B69-6 (EGR3) or A57-31 (EGR3) - Body ground
    		Always
    		10 kΩ or higher
    B69-3 (EGR4) or A57-30 (EGR4) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the EGR valve assembly connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (EGR VALVE ASSEMBLY - ECM)
OK


12.INSPECT ECM (EGR VOLTAGE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the EGR valve assembly connector.

  1. Inspect the ECM using an oscilloscope.

  1. While repeating quick engine RPM accelerations, check the waveform between the terminals of the EGR valve connector.

    Standard:
    Tester Connection
    		Condition
    		Specified Condition
    B69-4 (EGR1) - Body ground
    		Repeat quick engine RPM accelerations
    		Correct waveform shown
    B69-1 (EGR2) - Body ground
    		Repeat quick engine RPM accelerations
    B69-6 (EGR3) - Body ground
    		Repeat quick engine RPM accelerations
    B69-3 (EGR4) - Body ground
    		Repeat quick engine RPM accelerations

  1. Reconnect the EGR valve assembly connector.



NG
REPLACE ECM (Нажмите здесь)
OK


13.CHECK FOR DEPOSIT (EGR VALVE ASSEMBLY)
OK:
No deposit


NG
REMOVE FOREIGN OBJECT AND CLEAN EGR VALVE ASSEMBLY (Нажмите здесь)
OK


14.CHECK FOR DEPOSIT (EGR PASSAGE)
OK:
No deposit


NG
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA (Нажмите здесь)
OK


15.INSPECT FOR EXHAUST GAS LEAK

  1. Check for exhaust gas leaks (See page Нажмите здесь).

    OK:
    No leakage


NG
REPAIR OR REPLACE EXHAUST GAS LEAKAGE POINT (Нажмите здесь)
OK

REPLACE EGR VALVE ASSEMBLY (Нажмите здесь)

16.CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0234 Turbocharger / Supercharger Overboost Condition

  1. Disconnect the manifold absolute pressure sensor 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
    A56-2 (PIM) - B77-38 (PIM)
    		Always
    		Below 1 Ω
    A56-3 (VC) - B77-27 (VPIM)
    		Always
    		Below 1 Ω
    A56-1 (E) - B77-17 (EPIM)
    		Always
    		Below 1 Ω
    Standard resistance (check for short):
    Tester Connection
    		Condition
    		Specified Condition
    A56-2 (PIM) or B77-38 (PIM) - Body ground
    		Always
    		10 kΩ or higher
    A56-3 (VC) - B77-27 (VPIM) - Body ground
    		Always
    		10 kΩ or higher
    A56-1 (E) or B77-17 (EPIM) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the manifold absolute pressure sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)
OK

REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR