RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM C

NR Series ENGINE CONTROL SFI SYSTEM P003373 Turbocharger / Supercharger Bypass Valve "A" Control Actuator Stuck Closed

DESCRIPTION

Refer to DTC P003312.

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DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P003373	Turbocharger / Supercharger Bypass Valve "A" Control Actuator Stuck Closed	The boost pressure does not drop despite control to open the air by-pass valve assembly being commanded (1 trip detection logic).	· Air by-pass valve assembly (turbocharger sub-assembly) · No. 1 turbo pressure sensor · Wire harness or connector · ECM	Does not come on	DTC stored	SAE Code: P0039

MONITOR DESCRIPTION

If the throttle valve is closed while boost pressure is being applied, the air by-pass valve assembly opens and the excess pressure between the turbocharger and the throttle valve is released. If the boost pressure does not drop for a certain amount of time despite control to open the air by-pass valve assembly being commanded, the ECM determines that the air by-pass valve assembly is stuck closed and stores this DTC.

CONFIRMATION DRIVING PATTERN

4.448,0.958 4.802,0.667 4.802,0.667 5.021,0.667 false 3.042,1.854 2.635,1.344 2.635,1.344 2.438,1.344 false 0.25,0.292 1.354,0.542 1.104,0.25 10 false Vehicle Speed 0.76,0.677 1.375,0.875 0.615,0.198 10 false 50 km/h 0.927,2.042 1.542,2.24 0.615,0.198 10 false Idling 0.396,2.365 1.313,2.75 0.917,0.385 10 false Ignition switch ON 5.625,3.375 5.99,3.625 0.365,0.25 10 false [D] 1.427,1.26 2.729,1.563 1.302,0.302 10 false Fully depressed 5.083,0.604 6.031,0.792 0.948,0.188 10 false Released 2.198,1.885 2.656,2.083 0.458,0.198 10 false [A] 3.125,1.417 3.604,1.615 0.479,0.198 10 false [B] 4.906,1.406 5.365,1.604 0.458,0.198 10 false [C]

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

Turn the ignition switch off and wait for at least 30 seconds.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].

Turn the GTS on.

Accelerate to 50 km/h (31 mph) or more with the accelerator pedal fully depressed [B].

CAUTION:: When performing the confirmation driving pattern, obey all speed limits and traffic laws.

Quickly release the accelerator pedal from the fully depressed position [C].

10.

Enter the following menus: Powertrain / Engine / Trouble Codes [D].

11.

Read the pending DTCs.

HINT:: ·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, the system is normal.

WIRING DIAGRAM

Refer to DTC P003312 for air by-pass valve assembly circuit.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P003312201906,999999,_51,_080777,_0393969,RM100000001I1SY_05,P003312

Refer to DTC P023511 for No. 1 turbo pressure sensor circuit.

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CAUTION / NOTICE / HINT

HINT:: Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P003373)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTC P003373 is output	A
DTC P003373 and other DTCs are output	B

HINT:: If any DTCs other than P003373 are output, troubleshoot those DTCs first.

2.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE AIR BYPASS VALVE ASSEMBLY)

GO TO DTC CHART

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART201906,202007,_51,_080777,_0393969,RM100000001I1R8,202007,202304,_51,_080777,_0393969,RM100000001RKKF,202304,999999,_51,_080777,_0393969,RM100000002C0B1,

2.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE AIR BYPASS VALVE ASSEMBLY)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Active Test / Activate the Air Bypass Valve / Data List / Air Bypass Valve Control.

Powertrain > Engine > Active Test

Active Test Display
Activate the Air Bypass Valve

Data List Display
Air Bypass Valve Control

50004 372 12 282

According to the display on the GTS, perform the Active Test and check the operation and operation sound of the air by-pass valve assembly.

OK:

Active Test	Standard
ON	· ON is displayed for Data List item "Air Bypass Valve Control" · Air by-pass valve assembly operates (operation sound is normal)

Result:

Proceed to
OK
NG

3.INSPECT NO. 1 TURBO PRESSURE SENSOR

8.INSPECT AIR BY-PASS VALVE ASSEMBLY

3.INSPECT NO. 1 TURBO PRESSURE SENSOR

Inspect the No. 1 turbo pressure sensor.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>ON-VEHICLE INSPECTION201906,999999,_51,_080777,_0392346,RM100000001HQ2S,

Result:

Proceed to
OK
NG

12.CHECK WHETHER DTC OUTPUT RECURS (DTC P003373)

4.CHECK TERMINAL VOLTAGE (POWER SOURCE OF NO. 1 TURBO PRESSURE SENSOR)

0.208,1.01 0.563,1.208 0.354,0.198 0.833,1.833 1.156,1.135 true 1.531,1.833 1.531,1.167 true 2.198,1.833 1.865,1.167 true 0.115,0.094 0.427,0.292 0.313,0.198 10 false *a 0.729,1.854 1.052,2.094 0.323,0.24 10 false PIM 0.25,1.021 0.708,1.219 0.458,0.198 10 false C23 1.438,1.833 1.75,2.031 0.313,0.198 10 false E2 2.146,1.844 2.458,2.042 0.313,0.198 10 false VC

*a	Front view of wire harness connector (to No. 1 Turbo Pressure Sensor)

Disconnect the No. 1 turbo pressure sensor connector.

Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
C23-3 (VC) - C23-2 (E2)	Ignition switch ON	4.75 to 5.25 V
C23-1 (PIM) - C23-2 (E2)	Ignition switch ON	3.0 to 5.25 V

Result:

Proceed to
OK
NG

5.REPLACE NO. 1 TURBO PRESSURE SENSOR

13.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)

5.REPLACE NO. 1 TURBO PRESSURE SENSOR

Replace the No. 1 turbo pressure sensor.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>REMOVAL201906,999999,_51,_080777,_0392346,RM100000001HQ2R,

Result:

Proceed to
NEXT

6.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

Turn the ignition switch off and wait for at least 30 seconds.

Result:

Proceed to
NEXT

7.CHECK WHETHER DTC OUTPUT RECURS (P003373)

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTC P003373 is output	A
DTCs are not output	B

8.INSPECT AIR BY-PASS VALVE ASSEMBLY

END

8.INSPECT AIR BY-PASS VALVE ASSEMBLY

Inspect the air by-pass valve assembly.

Click hereEngine / Hybrid System>NR Series (INTAKE / EXHAUST)>TURBOCHARGER>INSPECTION201906,999999,_51,_080791,_0392518,RM100000001HRDG_01_0004,

Result:

Proceed to
OK
NG

9.CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR BY-PASS VALVE ASSEMBLY)

REPLACE TURBOCHARGER SUB-ASSEMBLY

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9.CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR BY-PASS VALVE ASSEMBLY)

0.5,0.979 0.896,1.281 0.396,0.302 1.24,1.76 1.667,1.26 false 0.146,0.146 0.458,0.344 0.313,0.198 10 false *a 0.573,1.031 1.031,1.229 0.458,0.198 10 false C97 1.094,1.771 1.406,1.969 0.313,0.198 10 false +B

*a	Front view of wire harness connector (to Air By-pass Valve Assembly)

Disconnect the air by-pass valve assembly connector.

Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
C97-1 (+B) - Body ground	Ignition switch ON	11 to 14 V

Result:

Proceed to
OK
NG

10.CHECK HARNESS AND CONNECTOR (AIR BY-PASS VALVE ASSEMBLY - ECM)

REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - AIR BY-PASS VALVE ASSEMBLY)

10.CHECK HARNESS AND CONNECTOR (AIR BY-PASS VALVE ASSEMBLY - ECM)

Disconnect the air by-pass valve assembly connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
C97-2 (ABV) - C78-67 (ABV)	Always	Below 1 Ω
C97-2 (ABV) or C78-67 (ABV) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

11.CLEAR DTC

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

Turn the ignition switch off and wait for at least 30 seconds.

Result:

Proceed to
NEXT

12.CHECK WHETHER DTC OUTPUT RECURS (DTC P003373)

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTCs are not output	A
DTC P003373 is output	B

CHECK FOR INTERMITTENT PROBLEMS

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REPLACE ECM

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13.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)

Disconnect the No. 1 turbo pressure sensor connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
C23-3 (VC) - C78-140 (VPTA)	Always	Below 1 Ω
C23-2 (E2) - C78-139 (EPTA)	Always	Below 1 Ω
C23-1 (PIM) - C78-108 (PTA)	Always	Below 1 Ω
C23-3 (VC) or C78-140 (VPTA) - Body ground and other terminals	Always	10 kΩ or higher
C23-1 (PIM) or C78-108 (PTA) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR