DTC    P0045    Turbocharger / Supercharger Boost Control Solenoid Circuit / Open

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

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

for Preparation Click here


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 stores 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 in sufficient.

P0045 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Turn the ignition switch to ON and wait for 10 seconds
(Monitor this DTC only once per driving cycle)
Open in DC motor (turbocharger sub-assembly) circuit
(1 trip detection logic)
  1. Open in DC motor (turbocharger sub-assembly) circuit
  2. Turbocharger sub-assembly (DC motor)
  3. ECM

P0047 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Engine idling for 30 seconds
Short in DC motor (turbocharger sub-assembly) circuit
(1 trip detection logic)
  1. Short in DC motor (turbocharger sub-assembly) circuit
  2. Turbocharger sub-assembly (DC motor)
  3. ECM

P0048 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Engine idling for 30 seconds
Short in DC motor (turbocharger sub-assembly) circuit
(1 trip detection logic)
  1. Short in DC motor (turbocharger sub-assembly) circuit
  2. Turbocharger sub-assembly (DC motor)
  3. ECM

HINT:
  1. If DTC P0045, P0047 and/or P0048 is stored, the following symptoms may appear.
    1. Poor acceleration


WIRING DIAGRAM


A199000E07


INSPECTION PROCEDURE

NOTICE:
When replacing the ECM, the ECM needs Registration and Initialization (Click here).

HINT:
  1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
  2. 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)


    A200305E01

  1. Disconnect the DC motor connector.

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

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

    Text in Illustration 
    *1
    		Component without harness connected
    (DC Motor)

  1. Reconnect the DC motor connector.



NG
Go to step 4
OK


2.CHECK HARNESS AND CONNECTOR (DC MOTOR - ECM)

  1. Disconnect the DC motor connector.



    A200285E01

  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
    B40-2 (M+) - B9-34 (M+)
    		Always
    		Below 1 Ω
    B40-1 (M-) - B9-33 (M-)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    B40-2 (M+) or B9-34 (M+) - Body ground
    		Always
    		10 kΩ or higher
    B40-1 (M-) or B9-33 (M-) - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to DC Motor)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the DC motor connector.

  1. Reconnect the ECM connector.



NG
Go to step 5
OK


3.REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 6

4.REPLACE TURBOCHARGER SUB-ASSEMBLY

  1. Replace the turbocharger sub-assembly (Click here).



NEXT
Go to step 6

5.REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT


6.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 and wait for 30 seconds or more.

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

  1. Start the engine.

  1. Allow the engine to idle for 30 seconds or more.

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

  1. Confirm that the DTC is not output again.


NEXT

END