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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Engine Control System - Diagnostic Codes (1 Of 7)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P00CF-62: Barometric Pressure - Turbocharger / Supercharger Boost Sensor "A" Signal Compare Failure [09/2023 - ] >> Procedure

DTC P00CF-62: Barometric Pressure - Turbocharger / Supercharger Boost Sensor "A" Signal Compare Failure [09/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P00CF-62) 
    1. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTC P00CF-62 and P0234-00, P0235-62, P2119-00, P2119-04 or P2119-77 and other DTCs are output A
      DTC P00CF-62 and P0234-00, P0235-62, P2119-00, P2119-04 or P2119-77 are output B
      DTC P00CF-62 is output C

      HINT: 

      If any DTCs other than P00CF-62 and P0234-00, P0235-62, P2119-00, P2119-04 or P2119-77 are output, troubleshoot those DTCs first.

    Result: 

    A 

    GO TO DTC CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ] 

    Result: 

    B 

    See step  2

    Result: 

    C 

    See step  2

  2. READ VALUE USING GTS (ATMOSPHERIC PRESSURE AND BOOST PRESSURE SENSOR) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Engine > Data List 

      Tester Display
      Atmospheric Pressure
      Boost Pressure Sensor

      Result

      Result Proceed to
      Difference between Atmospheric Pressure and Boost Pressure Sensor is higher than 13 kPa (1.89 psi) A
      Other than above B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  3

  3. READ VALUE USING GTS (ATMOSPHERIC PRESSURE AND BOOST PRESSURE SENSOR) 
    1. Check the value of Data List item.

      Powertrain > Engine > Data List 

      Tester Display
      Atmospheric Pressure
      Boost Pressure Sensor
    2. Using the following table, determine the normal atmospheric pressure for the current altitude and temperature.
      GTY1003743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Altitude, Temperature and Atmospheric Pressure Correlation Table *b Altitude (m (ft.))
      *c Temperature (°C (°F)) *d Atmospheric Pressure (kPa (psi))

      HINT: 

      • Standard atmospheric pressure is approximately 101 kPa(abs) (14.65 psi(abs)).
      • For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies depending on the weather.
    3. Compare the values of Atmospheric Pressure and Boost Pressure Sensor with the normal atmospheric pressure in the table.

      Result

      Result Proceed to
      Difference between (difference between value of Boost Pressure Sensor and normal atmospheric pressure) and (difference between value of Atmospheric Pressure and normal atmospheric pressure) is 4 kPa (0.58 psi) or higher A
      Other than above B

      HINT: 

      • Use the table below for reference only.
      • In Example 1, as the pressure difference is 4 kPa (0.58 psi) or higher, proceed to the next step.
      • In Example 2, as the pressure difference is less than 4 kPa (0.58 psi), replace the ECM.
      Item Example 1 Example 2
      Atmospheric pressure Difference between measured value and normal atmospheric pressure Difference between (difference between value of Boost Pressure Sensor and normal atmospheric pressure) and (difference between value of Atmospheric Pressure and normal atmospheric pressure) Atmospheric pressure Difference between measured value and normal atmospheric pressure Difference between (difference between value of Boost Pressure Sensor and normal atmospheric pressure) and (difference between value of Atmospheric Pressure and normal atmospheric pressure)
      Normal atmospheric pressure 100 kPa(abs) (14.5 psi(abs)) - 6 kPa (0.87 psi) 100 kPa(abs) (14.5 psi(abs)) - 2 kPa (0.29 psi)
      Boost Pressure Sensor in the Data List 110 kPa(abs) (15.95 psi(abs)) 10 kPa (1.45 psi) 108 kPa(abs) (15.66 psi(abs)) 8 kPa (1.16 psi)
      Atmospheric Pressure in the Data List 96 kPa(abs) (13.92 psi(abs)) 4 kPa (0.58 psi) 94 kPa(abs) (13.63 psi(abs)) 6 kPa (0.87 psi)

    Result: 

    B 

    REPLACE ECM. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    A 

    See step  4

  4. CHECK HARNESS AND CONNECTOR 

    Pre-procedure1

    • Disconnect the No. 2 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 Result
      C42-3 (VC) - C42-2 (E2) Ignition switch ON 4.5 to 5.5 V V
      C42-1 (PTA) - C42-2 (E2) Ignition switch ON 3.0 to 5.5 V V

    Post-procedure1

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

    Pre-procedure2

    • None
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      C42-3 (VC) - C42-1 (PTA) Ignition switch off 171 to 189 kΩ kΩ
      C42-2 (E2) - Body ground Always Below 1 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure2

    • None

    Result: 

    OK 

    REPLACE NO. 2 TURBO PRESSURE SENSOR. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    See step  5

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

    Pre-procedure1

    • Disconnect the No. 2 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 Result
      C42-3 (VC) - C26-102 (VPTA) Always Below 1 Ω Ω
      C42-2 (E2) - C26-125 (EPTA) Always Below 1 Ω Ω
      C42-1 (PTA) - C26-126 (PTA) Always Below 1 Ω Ω
      C42-3 (VC) or C26-102 (VPTA) - Body ground and other terminals Always 10 kΩ or higher kΩ
      C42-1 (PTA) or C26-126 (PTA) - Body ground and other terminals Always 10 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  6. CHECK INTAKE SYSTEM 
    1. Check the intake system for vacuum leaks and blockage.

      Refer to ON-VEHICLE INSPECTION [09/2023 - ]

      OK

      No leaks or blockage.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the intake system.

      Refer to INITIALIZATION [09/2023 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE INTAKE SYSTEM 

    Result: 

    OK 

    See step  7

  7. CLEAR DTC 

    Pre-procedure1

    • None
    • Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

      Result

      Proceed to
      NEXT

    Post-procedure1

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

    Result: 

    NEXT 

    See step  8

  8. CHECK WHETHER DTC OUTPUT RECURS (DTC P00CF-62) 

    Pre-procedure1

    • Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
    • Perform the All Readiness.

      Powertrain > Engine > Utility 

      Tester Display
      All Readiness
    • Input the DTC: P00CF-62.
    • Check the DTC judgment result.

      Result

      Result Proceed to
      NORMAL
      (DTCs are not output)      		 A
      ABNORMAL
      (P00CF-62 is output)      		 B

    Post-procedure1

    • None

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE ECM. Refer to  REMOVAL [09/2023 - ] 

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