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 600hLFACTORY OEM SERVICE PROCEDURE

Service Data

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

Intake air control valve actuator

INTAKE AIR CONTROL VALVE ACTUATOR - SERVICE DATA

Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 2	Actuator shaft rotates to left
Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1	Actuator shaft rotates to right

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.