DTC Code | DTC Name |
---|---|
P0046 | Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance |
DESCRIPTION
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 gases in order to control the turbo pressure. The ECM varies the duty-cycle of the DC motor in accordance with the driving conditions.
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.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P0046 | Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance |
Condition (A): Either of following conditions is met (1 trip detection logic)
Condition (B): VN turbocharger position does not change smoothly within predetermined time of ignition switch being turned from ON to off (while EFI-MAIN relay is ON) (Determination of a malfunction is conducted within a given time after the ignition switch is turned from ON to off. If a malfunction is detected within this time, DTC is set when the ignition switch is next turned to ON) (MIL is not illuminated) (2 trip detection logic) |
|
Condition (A)-(a): - Condition (A)-(b), (c), (d): Comes on Condition (B): - |
DTC stored |
DTC No. | DTC Detection Drive Pattern |
---|---|
P0046 |
Condition (A): Both of following condition are met
Condition (B): Ignition switch turned from ON to off |
DTC No. | Data List |
---|---|
P0046 |
|
If DTC P0046 is stored, the following symptoms may appear.
Poor acceleration
Lack of power due to fail-safe operation
WIRING DIAGRAM
CAUTION / NOTICE / HINT
When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures for the "Learning Values Write" function by following the instructions shown on the GTS display.
Read freeze frame data using the GTS. 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.
PROCEDURE
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0046)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
If any DTCs other than P0046 are output, troubleshoot those DTCs first.
B |
GO TO DTC CHART Click hereНажмите здесь |
A |
INSPECT TURBOCHARGER SUB-ASSEMBLY
Check the motor movement when turning the ignition switch to ON, when starting the engine, and then when turning the ignition switch off.
*a | Idling to ignition switch off |
*b | Ignition switch ON to idling |
OK |
---|
Motor moves smoothly as shown in the illustration. |
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0046)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off within 10 seconds of clearing DTCs, and wait for 30 seconds.
The ignition switch must be turned off before DTC recurs.
Turn the ignition switch to ON and wait for 10 seconds or more.
Start the engine and fully depress and release the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
A |
END |
B |
REPLACE TURBOCHARGER SUB-ASSEMBLY
Replace the turbocharger sub-assembly.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0046)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off within 10 seconds of clearing DTCs, and wait for 30 seconds.
The ignition switch must be turned off before DTC recurs.
Turn the ignition switch to ON and wait for 10 seconds or more.
Start the engine and fully depress and release the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
A |
END |
B |
REPLACE ECM
Replace the ECM.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off within 10 seconds of clearing DTCs, and wait for 30 seconds.
The ignition switch must be turned off before DTC recurs.
Turn the ignition switch to ON and wait for 10 seconds or more.
Start the engine and fully depress and released the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output again.
Powertrain > Engine and ECT > Trouble CodesResult | ||
---|---|---|
|
NEXT |
END |
INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)
Inspect the turbocharger sub-assembly (DC motor).
Click hereНажмите здесь
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
GO TO STEP 4 |
OK |
CHECK HARNESS AND CONNECTOR (DC MOTOR - ECM)
Disconnect the DC motor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
OK | Нажмите здесь |
GO TO STEP 4 |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 5 |