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.
On-Vehicle Inspection
- CHECK THROTTLE WITH MOTOR BODY ASSEMBLY
- Check the throttle control motor operating sounds.
- Turn the ignition switch to ON.
- When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises are emitted from the motor.
If friction noise exists, replace the throttle with motor body assembly.
- Check the throttle position sensor.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Sensor Position.
- Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "Throttle Sensor Position" is within the specification.
Standard throttle valve opening percentage
60% or more
NOTE:When checking the standard throttle valve opening percentage, make sure the shift lever is in N.
If the percentage is less than 60%, replace the throttle with motor body assembly.
- Check the throttle control motor operating sounds.
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.