Dtc P0047 Turbocharger/Supercharger Boost Control A Circuit Low


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK TURBOCHARGER SUB-ASSEMBLY (DC MOTOR OPERATION)

INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)

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

REPLACE TURBO MOTOR DRIVER

CHECK WHETHER DTC OUTPUT RECURS (DTC P0047 AND/OR P0048)

REPLACE TURBOCHARGER SUB-ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

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


DESCRIPTION

Refer to DTC P0046 (Toyota Fortuner RM000002NCM01CX_06.html).

P0047
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Drive the vehicle with a city driving pattern at least 10 minutes.
Both of following conditions met for 1 second or more
(1 trip detection logic):
  1. DC motor duty ratio 100%
  2. DC motor current 0.5 A or less
  1. Open in DC motor circuit
  2. Turbo motor driver
  3. DC Motor (turbocharger sub-assembly)

P0048
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Drive the vehicle with a city driving pattern at least 10 minutes.
DC motor current 6.5 A or more for 0.5 seconds or more
(1 trip detection logic)
  1. Short in DC motor circuit
  2. Turbo motor driver
  3. DC Motor (turbocharger sub-assembly)

WIRING DIAGRAM

Refer to DTC P0046 (Toyota Fortuner RM000002NCM01CX_07.html).

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.CHECK TURBOCHARGER SUB-ASSEMBLY (DC MOTOR OPERATION)

  1. Turn the ignition switch to ON.

  1. Turn the ignition switch off and check the DC motor operation (check the operation link movement).

    HINT:
    When it is necessary to repeat this inspection, wait 30 seconds or more with the ignition switch off before performing the inspection.
    OK:
    When ignition switch is turned off, operation link moves as shown in A through D in illustration below.
    Operation link and motor rod move smoothly when moving from position shown in A to that shown in B, and from position shown in B to that shown in C.

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Control System.Ecd System. Dtc P0047 Turbocharger/Supercharger Boost Control A Circuit Low



NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (Toyota Fortuner RM000000PDQ0QSX.html)

2.INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Control System.Ecd System. Dtc P0047 Turbocharger/Supercharger Boost Control A Circuit Low

  1. Disconnect the DC motor connector.

  1. Measure the DC motor resistance.

    Standard resistance:
    1 to 100 Ω
    Text in Illustration
    *a
    		Component without harness connected
    (DC Motor)


NG
Go to step 6
OK


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

  1. Disconnect the DC motor connector.

  1. Disconnect the turbo motor driver connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    T34-12 (M+) - T10-2 (M+)
    		Always
    		Below 1 Ω
    T34-5 (M-) - T10-1 (M-)
    		Always
    		Below 1 Ω
    T34-12 (M+) or T10-2 (M+) - Body ground
    		Always
    		10 kΩ or higher
    T34-5 (M-) or T10-1 (M-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the turbo motor driver connector.

  1. Reconnect the DC motor connector.



NG
Go to step 7
OK


4.REPLACE TURBO MOTOR DRIVER

  1. Replace the turbo motor driver (Toyota Fortuner RM0000043H100CX_01_0011.html).


NEXT


5.CHECK WHETHER DTC OUTPUT RECURS (DTC P0047 AND/OR P0048)

  1. Connect the intelligent tester to the DLC3.

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

  1. Clear the DTCs (Toyota Fortuner RM000000PDK0TWX.html).

  1. Drive the vehicle with a city driving pattern at least 10 minutes.

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

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    P0047 and/or P0048 is output
    		A
    No DTC is output
    		B


B
END
A


6.REPLACE TURBOCHARGER SUB-ASSEMBLY

  1. Replace turbocharger sub-assembly (Toyota Fortuner RM00000143U00UX.html).



NEXT
Go to step 8

7.REPAIR OR REPLACE HARNESS OR CONNECTOR

  1. Repair or replace the harness or connector.


NEXT


8.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

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

  1. Clear the DTCs (Toyota Fortuner RM000000PDK0TWX.html).

  1. Turn the ignition switch off.

  1. Remove the EFI fuse from the engine room relay block and junction block assembly for more than 1 minute.

  1. Turn the ignition switch to ON and wait for 10 seconds or more.

  1. Start the engine.

  1. Drive the vehicle with a city driving pattern at least 10 minutes.

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

  1. Confirm that the DTC is not output again.


NEXT

END