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.
Accelerator Pedal Position (APP) Sensor Assembly On-Vehicle Inspection
- Check that APP sensor assembly has been mounted to vehicle body properly (no pinched floor carpet, etc.).
If mounting is not properly, reinstall APP sensor assembly properly referring to ACCELERATOR PEDAL POSITION (APP) SENSOR ASSEMBLY REMOVAL AND INSTALLATION .
- Connect scan tool to DLC with ignition switch turned OFF.
- Turn ON ignition switch and select "Data List" mode on scan tool.
- Check that APP sensor voltage varies as the following graph.
If sensor voltage is out of specified value or does not vary linearly as the following graph, check APP sensor assembly referring to ACCELERATOR PEDAL POSITION (APP) SENSOR ASSEMBLY INSPECTION .
NO RELATED
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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.