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.
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HOMESERVICE MANUALSLEXUS2012RX 450H AWD V6-3.5L (2GR-FXE) HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORTESTING AND INSPECTION
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) Hybrid
Throttle Position Sensor: Testing and Inspection
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) HybridSECTION Testing and Inspection
Throttle Position Sensor
Check the throttle position sensor.
Connect the Techstream to the DLC3.
Turn the Techstream on.
Set the vehicle to the "Inspection Mode".
Start the engine without operating the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Data List / Engine speed.
Check that the MIL is not illuminated and that the idle speed is within the specified range when the A/C is switched off after the engine is warmed up.
Standard:
NOTICE:
Be sure to perform this step with all accessories off.
Make sure that the shift lever is in P.
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.