Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
On-Vehicle Inspection [12/2024 - ]: Procedure
2025 Toyota 4Runner SR5, RWDSECTION Procedure
- INSPECT NO. 2 TURBO PRESSURE SENSOR
Pre-procedure1
- Check the terminal voltage.
- Disconnect the No. 2 turbo pressure sensor connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Result A12-3(VC) - A12-1(E2) Ignition switch ON 4.5 to 5.5 V V If the result is not as specified, repair or replace the wire harness or connector.
- Check the turbo pressure.
- Turn the ignition switch to ON.
- According to the display on the GTS read the Data List.
Powertrain > Engine > Data List
Tester Display Boost Pressure Sensor OK
The value is approximately equal to atmospheric pressure.
HINT:
- Standard atmospheric pressure is approximately 101 kPa (abs) (15 psi (abs)).
- For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies by weather.
Post-procedure1
- None
- Check the terminal voltage.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.