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.
2008 Scion xD StandardFACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- INSPECT THROTTLE BODY ASSEMBLY
- Check the throttle position sensor.
- Connect a Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the tester ON.
- Start the engine.
- Select the following menu items: Powertrain / Engine and ECT / Data List / Throttle Position.
- Depress the accelerator pedal.
OK:
Make sure that the throttle valve is opened when the accelerator pedal is depressed.
- Check the throttle position sensor.
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.