DTC P0105-15: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Battery or Open [11/2021 - 03/2022]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
- Disconnect the manifold absolute 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 B19-3 (VC) - B19-1 (E2) Ignition switch ON 4.75 to 5.25 V B19-2 (PIM) - B19-1 (E2) Ignition switch ON 0.95 to 4.25 V - Turn the ignition switch off and wait for at least 30 seconds.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition B19-1 (E2) - Body ground Ignition switch off Below 1 Ω B19-3 (VC) - B19-2 (PIM) Ignition switch off 171 to 189 kΩ Result
Proceed to OK NG
Result:
OK
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR. Refer to REMOVAL [11/2021 - ]
Result:
NG
See step 2
- CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)
- Disconnect the manifold absolute 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 B19-1 (E2) - B48-119 (EPIM) Always Below 1 Ω B19-2 (PIM) - B48-120 (PIM) Always Below 1 Ω B19-2 (PIM) or B48-120 (PIM) - Other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [11/2021 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR