Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR) (for Bank 1 or Bank 2)

CHECK HARNESS AND CONNECTOR (DC MOTOR - TURBO MOTOR DRIVER)

INSPECT TURBOCHARGER SUB - ASSEMBLY

INSPECT TURBO MOTOR DRIVER

REPLACE TURBO MOTOR DRIVER

REPLACE TURBOCHARGER SUB-ASSEMBLY (for Bank 1 or Bank 2)

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance

DTC P0047 Turbocharger/Supercharger Boost Control "A" Circuit Low

DTC P0048 Turbocharger/Supercharger Boost Control "A" Circuit High

DTC P004B Turbocharger/Supercharger Boost Control Solenoid "B" Circuit Range/Performance

DTC P004C Turbocharger/Supercharger Boost Control Solenoid "B" Circuit Low

DTC P004D Turbocharger/Supercharger Boost Control Solenoid "B" Circuit High


DESCRIPTION

These DTCs indicates that the DC motor of the turbocharger is malfunctioning. The ECM monitors the DC motor current to detect an open or short in the DC motor circuit. If the current meets the criteria, the ECM sets a DTC and illuminates the MIL immediately.
The DC motor is used to operate the nozzle vane of the turbocharger. The nozzle vane opens and closes to change the velocity of exhaust emissions in order to control the turbo pressure. The ECM varies the duty-cycle of the DC motor in accordance with the driving condition.
If the nozzle vane is stuck closed (DC motor stuck off), the drivability may deteriorate at wide open throttle. If the nozzle vane is stuck open (DC motor stuck on), the drivability may deteriorate at intermediate throttle or the engine power may be insufficient.

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance


P0046, P004B
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 5 seconds
Either of the following conditions are met when the motor is driving (1 trip detection logic):
  1. DC motor duty ratio is +/-100% for 1.3 seconds or more.
  2. DC motor current is 2.2 A or more for 5 seconds or more.
  1. Open or short in DC motor (turbocharger sub-assembly) circuit
  2. Turbo motor driver
  3. DC motor (turbocharger sub-assembly)
  4. Turbocharger nozzle vane is stuck or movement is irregular

P0047, P004C
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 1 second
Both of following conditions are met for 1 second or more when the motor is driving (1 trip detection logic):
  1. DC motor duty ratio is 100%.
  2. DC motor current is 0.5 A or less.
  1. Open in DC motor (turbocharger sub-assembly) circuit
  2. Turbo motor driver
  3. DC Motor (turbocharger sub-assembly)
  4. Turbocharger nozzle vane is stuck or movement is irregular

P0048, P004D
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 1 second
DC motor current is 6.5 A or more for 0.5 seconds or more when the motor is operating (1 trip detection logic).
  1. Short in DC motor (turbocharger sub-assembly) circuit
  2. Turbo motor driver
  3. DC Motor (turbocharger sub-assembly)
  4. Turbocharger nozzle vane is stuck or movement is irregular
HINT:
If DTC P0046, P0047, P0048, P004B, P004C and/or P004D is stored, the following symptoms may appear.
  1. Stuck closed malfunction:
    1. Vehicle surge when driving with full load
  2. Stuck open malfunction:
    1. Lack of power
    2. Vehicle surge or hesitation under light or medium load
    3. White smoke

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance


INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
1.INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR) (for Bank 1 or Bank 2)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance

  1. Disconnect the DC motor connector.

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

    Standard Resistance:
    for Bank 1
    Tester Connection
    		Condition
    		Specified Condition
    1 (M-) - 2 (M+)
    		Always
    		1 to 100 Ω
    Standard Resistance:
    for Bank 2
    Tester Connection
    		Condition
    		Specified Condition
    1 (M2-) - 2 (M2+)
    		Always
    		1 to 100 Ω


NG
Go to step 6
OK


2.CHECK HARNESS AND CONNECTOR (DC MOTOR - TURBO MOTOR DRIVER)

  1. Disconnect the DC motor (for Bank 1) connector.

  1. Disconnect the DC motor (for Bank 2) connector.



  1. Disconnect the turbo motor driver connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance

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

    Standard Resistance (Check for Open):

    for Bank 1
    Tester Connection
    		Condition
    		Specified Condition
    C90-1 (M-) - A48-10 (M-)
    		Always
    		Below 1 Ω
    C90-2 (M+) - A48-3 (M+)
    		Always
    		Below 1 Ω

    for Bank 2
    Tester Connection
    		Condition
    		Specified Condition
    z67-1 (M2-) - A48-19 (M2-)
    		Always
    		Below 1 Ω
    z67-2 (M2+) - A48-18 (M2+)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):

    for Bank 1
    Tester Connection
    		Condition
    		Specified Condition
    C90-1 (M-) or A48-10 (M-) - Body ground
    		Always
    		10 kΩ or higher
    C90-2 (M+) or A48-3 (M+) - Body ground
    		Always
    		10 kΩ or higher

    for Bank 2
    Tester Connection
    		Condition
    		Specified Condition
    z67-1 (M2-) or A48-19 (M2-) - Body ground
    		Always
    		10 kΩ or higher
    z67-2 (M2+) or A48-18 (M2+) - Body ground
    		Always
    		10 kΩ or higher


NG
Go to step 7
OK


3.INSPECT TURBOCHARGER SUB - ASSEMBLY

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Start the engine and warm up.

  1. Move the shift lever to 3rd and accelerate the vehicle with the accelerator fully open.

  1. Stop the vehicle.

  1. Enter the following menus: Powertrain / Engine / DTC.



  1. Read the DTCs.

    Result:
    Display (DTC Output)
    		Proceed to
    DTC P0046, P0047, P0048, P004B, P004C and/or P004D are output
    		A
    No DTC output
    		B
    HINT:
    1. A snapshot can be used to compare vehicle data from the time of the malfunction to normal data and is very useful for troubleshooting.
    2. "Target Booster Pressure" and "MAP" in the snapshot can be used to check the operation of the turbocharger. If "MAP" does not follow "Target Booster Pressure", the turbocharger nozzle vane may be stuck or the movement may be irregular.
    3. When the engine speed is 2500 to 3000 rpm with the accelerator pedal fully depressed, "MAP" is within +/- 10 kPa* of "Target Booster Pressure" (not immediately after beginning of acceleration).
    4. * If the turbocharger pressure does not reach a specified value, it cannot be determined whether the system is normal by checking whether "MAP" is within +/-10 kPa of "Target Booster Pressure".

    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0046 Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance

    HINT:
    Compare "MAP" with "Target Booster Pressure" at the point indicated by the arrow (↑) in the illustration.


A
Go to step 6
B


4.INSPECT TURBO MOTOR DRIVER

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (Click here).

  1. Turn the engine switch off.

  1. Remove the rear fender splash shield sub-assembly RH.

  1. Remove the front fender liner LH.

  1. Disconnect the turbo motor driver connector.

  1. Reconnect the turbo motor driver connector.

  1. Turn the engine switch on (IG) and turn the tester on.

  1. After starting the engine, idle it for 5 seconds.

  1. Enter the following menus: Powertrain / Engine / DTC.

  1. Read the DTCs.

    Result:
    Display (DTC Output)
    		Proceed to
    DTC is output
    		A
    DTC is not output
    		B


B
END
A


5.REPLACE TURBO MOTOR DRIVER

  1. Replace the turbo motor driver (Click here).

    NOTICE:
    Make sure that foreign matter does not enter the connector(s) when replacing parts.


NEXT
Go to step 8

6.REPLACE TURBOCHARGER SUB-ASSEMBLY (for Bank 1 or Bank 2)

  1. Replace the turbocharger sub-assembly (for Bank 1 or Bank 2) (Click here).



NEXT
Go to step 8

7.REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT


8.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

  1. Turn the ignition switch to ON for 5 seconds or more.

  1. Enter the following menus: Powertrain / Engine / DTC.

  1. Confirm that the DTC is not output again.


NEXT

END