LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2023 >> LX 600 Premium >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (W/O Canister Pump Module) - Diagnostic Codes (2 Of 5) >> SFI SYSTEM (w/o Canister Pump Module) >> DTC P0105-11: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground [12/2021 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0105-11: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground [12/2021 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR 

    HINT: 

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

    Pre-procedure1

    1. Disconnect the No. 3 turbo pressure sensor connector.
    2. Turn the ignition switch to ON.

      Procedure1

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

      Standard Voltage

      Tester Connection Condition Specified Condition
      C40-3 (VC) - C40-2 (E2) Ignition switch ON 4.75 to 5.25 V
      C40-1 (PIM) - C40-2 (E2) Ignition switch ON 1.2 to 5.25 V

      Post-procedure1

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

      Pre-procedure2

    5. None

      Procedure2

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      C40-3 (VC) - C40-1 (PIM) Ignition switch off 171 to 189 kΩ

      Result

      Proceed to
      OK
      NG

      Post-procedure2

    7. None

    Result: 

    OK 

    REPLACE NO. 3 TURBO PRESSURE SENSOR. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (NO. 3 TURBO PRESSURE SENSOR - ECM) 
    1. Disconnect the No. 3 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
      C40-3 (VC) - C38-40 (VCPM) Always Below 1 Ω
      C40-1 (PIM) or C38-38 (PIM) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR