SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P003314, P00C014

DTC Code DTC Name
P003314 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Ground or Open
P00C014 Turbocharger/Supercharger Bypass Valve "B" Control Circuit Short to Ground or Open

DESCRIPTION

Refer to DTC P003312.

Click here

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 (bank 1) circuit (1 trip detection logic).

  • Open or short in air by-pass valve assembly (bank 1) circuit

  • Air by-pass valve assembly (bank 1)

  • EFI-MAIN NO. 3 relay

  • ECM

 - DTC stored SAE: P0034
P00C014 Turbocharger/Supercharger Bypass Valve "B" Control Circuit Short to Ground or Open Open or short in air by-pass valve assembly (bank 2) circuit (1 trip detection logic).

  • Open or short in air by-pass valve assembly (bank 2) circuit

  • Air by-pass valve assembly (bank 2)

  • EFI-MAIN NO. 3 relay

  • ECM

 - DTC stored SAE: P00C1

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 ON/OFF 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 a DTC.

CONFIRMATION DRIVING PATTERN

B006EE7E01

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

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

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

  5. Turn the engine switch on (IG) and turn the GTS on.

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

  7. 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.

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

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

  10. Read the pending DTCs.

    Tech Tips


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

    • If a pending DTC is not output, perform the following procedure.

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

  12. Input the DTC: P003314 or P00C014.

  13. 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

    Tech Tips


    • 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.

WIRING DIAGRAM

Refer to DTC P003312.

Click here

CAUTION / NOTICE / HINT

Note

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

Tech Tips


  • 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.

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transmission.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

    DTC Suspected Area
    P003314 Bank 1
    P00C014 Bank 2

PROCEDURE


  1. INSPECT AIR BY-PASS VALVE ASSEMBLY


    1. Inspect the air by-pass valve assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE AIR BY-PASS VALVE ASSEMBLY Click here

    OK

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


    1. Disconnect the air by-pass valve assembly connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D36-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      D38-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT EFI-MAIN NO. 3 RELAY Click here

    OK

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


    1. Disconnect the air by-pass valve assembly connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D36-2 (ABV) - D1-30 (ABV) Always Below 1 Ω
      D38-2 (ABV2) - D1-29 (ABV2) Always Below 1 Ω
      D36-2 (ABV) or D1-30 (ABV) - Body ground and other terminals Always 10 kΩ or higher
      D38-2 (ABV2) or D1-29 (ABV2) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P003314 OR P00C014)


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

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


      Powertrain > Engine > Utility
      Tester Display
      All Readiness

    3. Input the DTC: P003314 or P00C014.

    4. Check the DTC judgment result.

      Result
      Result Proceed to

      NORMAL

      (DTCs are not output)

      		 A

      ABNORMAL

      (DTC P003314 or P00C014 is output)

      		 B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE ECM Click here

  6. INSPECT EFI-MAIN NO. 3 RELAY


    1. Inspect the EFI-MAIN NO. 3 relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE EFI-MAIN NO. 3 RELAY

    OK

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF EFI-MAIN NO. 3 RELAY)


    1. Remove the EFI-MAIN NO. 3 relay from the No. 1 engine room relay block and junction block assembly.

      B006D7GC01
      *A for LHD *B for RHD
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly *2 EFI-MAIN NO. 3 Relay

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      3 (EFI-MAIN NO. 3 relay) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - EFI-MAIN NO. 3 RELAY)

    OK

  8. CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 3 RELAY - BODY GROUND)


    1. Remove the EFI-MAIN NO. 3 relay from the No. 1 engine room relay block and junction block assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (EFI-MAIN NO. 3 relay) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 3 RELAY - AIR BY-PASS VALVE ASSEMBLY)


    1. Remove the EFI-MAIN NO. 3 relay, A/F HTR relay, VVT NO. 1 relay and VVT NO. 2 relay from the No. 1 engine room relay block and junction block assembly.

      Tech Tips

      Remove the A/F HTR relay, VVT NO. 1 relay and VVT NO. 2 relay connected between the checked terminals as the coil inside the relay influences the measurement value.

    2. Disconnect the air by-pass valve assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5 (EFI-MAIN NO. 3 relay) - D36-1 (+B) Always Below 1 Ω
      5 (EFI-MAIN NO. 3 relay) - D38-1 (+B) Always Below 1 Ω
      5 (EFI-MAIN NO. 3 relay) or D36-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      5 (EFI-MAIN NO. 3 relay) or D38-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - EFI-MAIN NO. 3 RELAY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR