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 ES 350FACTORY OEM SERVICE PROCEDURE
Section 58 (Engine Control System (Service Information))
WARNING: This page is about a different car, the 2009 Lexus GS 460. However, it is still accessible from the selected car via links, so may be relevant.
- Camshaft Oil Control Valve
- Camshaft Timing Control Motor
- Throttle Body
- ECM
- Accelerator Pedal
- Mass Air Flow Meter
- Camshaft Position Sensor
- VVT Sensor
- Crankshaft Position Sensor
- Engine Coolant Temperature Sensor
- Knock Sensor
- Air Fuel Ratio Sensor
- Heated Oxygen Sensor
- VVT Relay
- Integration Relay
- Ignition Relay No. 2
- Fuel Pump Relay
- INJ2 Relay
- Air Fuel Ratio Sensor Relay
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.