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

NR Series ENGINE CONTROL  SFI SYSTEM  P003314  Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Ground or Open  


DESCRIPTION

Refer to DTC P003312.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P003312

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P003314 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Ground or Open Open or short in air by-pass valve assembly circuit (1 trip detection logic).
·

Open or short in air by-pass valve assembly circuit

·

Air by-pass valve assembly (turbocharger sub-assembly)

·

ECM


Does not come on DTC stored SAE Code: P0034

MONITOR DESCRIPTION

The ECM monitors the output voltage while the air by-pass valve assembly is operating.

The air by-pass valve assembly turns on and off according to switching of a transistor inside the ECM.

If a continuous mismatch occurs between the ECM transistor state and the output voltage, the ECM determines there is a malfunction in the air by-pass valve assembly circuit and stores this DTC.

CONFIRMATION DRIVING PATTERN

A330723E04
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]

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

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

5.

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

6.

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

7.

Turn the GTS on.

8.

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.


9.

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, perform the following procedure.



12.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

13.

Input the DTC: P003314.

14.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE, perform steps [B] through [D] again.




CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.


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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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

e.

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



OK

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


NG

2.INSPECT AIR BY-PASS VALVE ASSEMBLY
2.INSPECT AIR BY-PASS VALVE ASSEMBLY
a.

Inspect the air by-pass valve assembly.

Click hereEngine / Hybrid System>NR Series (INTAKE / EXHAUST)>TURBOCHARGER>INSPECTION


Result:
Proceed to
OK
NG



OK

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

NG

REPLACE TURBOCHARGER SUB-ASSEMBLY

Click hereEngine / Hybrid System>NR Series (INTAKE / EXHAUST)>TURBOCHARGER>REMOVAL


3.CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR BY-PASS VALVE ASSEMBLY)
A399949C21
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)


a.

Disconnect the air by-pass valve assembly connector.


b.

Turn the ignition switch to ON.


c.

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



OK

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

NG

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

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

Disconnect the air by-pass valve assembly connector.


b.

Disconnect the ECM connector.


c.

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




OK

5.CLEAR DTC

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

6.CHECK WHETHER DTC OUTPUT RECURS (DTC P003314)
6.CHECK WHETHER DTC OUTPUT RECURS (DTC P003314)
a.

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


b.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility
Tester Display
All Readiness
50005 372 20

c.

Input the DTC: P003314.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P003314 is output) 		B




A

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


B

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL