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.
2009 Lexus LS 460 AWDFACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- INSPECT ACCELERATOR PEDAL
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the tester ON.
- Enter the following menus: Powertrain/Engine/Data List/ETCS/Accelerator Position No. 1 and accelerator Position No. 2.
- Read the value displayed on the tester.
ACCEL POS #1 (Accelerator Position No. 1) standard voltage
STANDARD VOLTAGE SPECIFICATIONCondition Specified Condition Accelerator pedal is released 0.5 to 1.1 V Accelerator pedal is depressed 2.6 to 4.5 V ACCEL POS #2 (Accelerator Position No. 2) standard voltage
STANDARD VOLTAGE SPECIFICATIONCondition Specified Condition Accelerator pedal is released 1.2 to 2.0 V Accelerator pedal is depressed 3.4 to 5.0 V If the result is not as specified, check the accelerator pedal, wire harness or ECM.
Factory Service Tools
Use the Manual With the Right Hardware
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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.