SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P023515, P023915

DTC Code DTC Name
P023515 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open
P023915 Turbocharger/Supercharger Boost Sensor "B" Circuit Short to Battery or Open

DESCRIPTION

Refer to DTC P023511.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P023515 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open The output voltage from the No. 1 turbo pressure sensor (bank 1) is higher than 4.63 V for 3 seconds or more (1 trip detection logic).

  • Open or short in No. 1 turbo pressure sensor (bank 1) circuit

  • No. 1 turbo pressure sensor (bank 1)

  • ECM

 Comes on DTC stored SAE: P0238
P023915 Turbocharger/Supercharger Boost Sensor "B" Circuit Short to Battery or Open The output voltage from the No. 1 turbo pressure sensor (bank 2) is higher than 4.63 V for 3 seconds or more (1 trip detection logic).

  • Open or short in No. 1 turbo pressure sensor (bank 2) circuit

  • No. 1 turbo pressure sensor (bank 2)

  • ECM

 Comes on DTC stored SAE: P0242

Tech Tips

When a DTC is output, check the Data List item "Boost Pressure Sensor and Boost Pressure Sensor2" using the GTS.

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DTC No. Boost Pressure Sensor or Boost Pressure Sensor2 Malfunction
P023515 320 kPa [46.4 psi] or higher

  • Short in VCPR circuit to PTA circuit

  • Open in PTA circuit

  • Open in EPR circuit
P023915

  • Short in VCPR circuit to PTA2 circuit

  • Open in PTA2 circuit

  • Open in EPR circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

MONITOR DESCRIPTION

The ECM calculates the air outlet duct internal pressure from the No. 1 turbo pressure sensor output voltage. If the No. 1 turbo pressure sensor output voltage is not within the normal range, there may be a malfunction in the No. 1 turbo pressure sensor or an open or short circuit. The ECM illuminates the MIL and stores a DTC.

Example:

When the sensor output voltage is higher than 4.63 V for 3 seconds or more, the ECM stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main) No. 1 turbo pressure sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  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).

  6. Turn the GTS on.

  7. Start the engine and wait 5 seconds or more.

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

  9. 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.

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

  11. Input the DTC: P023515 or P023915.

  12. 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.

WIRING DIAGRAM

Refer to DTC P023511.

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CAUTION / NOTICE / HINT

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
    P023515 Bank 1
    P023915 Bank 2

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR

    Tech Tips

    Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


    1. Disconnect the No. 1 turbo pressure sensor 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 Condition Specified Condition
      D28-3 (VC) - D28-1 (E2) Engine switch on (IG) 4.5 to 5.5 V
      D30-3 (VC2) - D30-1 (E22) Engine switch on (IG) 4.5 to 5.5 V
      D28-2 (PTA) - D28-1 (E2) Engine switch on (IG) 3.0 to 5.5 V
      D30-2 (PTA2) - D30-1 (E22) Engine switch on (IG) 3.0 to 5.5 V

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D28-3 (VC) - D28-2 (PTA) Engine switch off 171 to 189 kΩ
      D30-3 (VC2) - D30-2 (PTA2) Engine switch off 171 to 189 kΩ
      D28-1 (E2) - Body ground Always Below 1 Ω
      D30-1 (E22) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 1 TURBO PRESSURE SENSOR Click here

    NG

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


    1. Disconnect the No. 1 turbo pressure sensor 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
      D28-2 (PTA) - D1-126 (PTA) Always Below 1 Ω
      D28-1 (E2) - D1-97 (EPR) Always Below 1 Ω
      D30-2 (PTA2) - D1-125 (PTA2) Always Below 1 Ω
      D30-1 (E22) - D1-97 (EPR) Always Below 1 Ω
      D28-2 (PTA) or D1-126 (PTA) - Other terminals Always 10 kΩ or higher
      D30-2 (PTA2) or D1-125 (PTA2) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR