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.
2011 Lexus LS 460 AWDFACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- CHECK THROTTLE BODY ASSEMBLY
- Check the throttle position sensor.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the tester on.
- Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Sensor Position.
- Start the engine.
- Firmly depress the brake pedal with your left foot, and move the shift lever to D.NOTE:
Set the parking brake to fix the wheels in place.
- Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of the "THROTTLE POS (Throttle Sensor Position)" is within the specification.
Standard throttle valve opening percentage
60% or more
HINT:
When checking the standard throttle valve opening percentage, the shift lever should be in the N position.
- If the percentage is less than 60%, replace the throttle body assembly.
- Check the throttle position sensor.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.