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.
Throttle Position Sensor
Disconnect TP sensor 3-pin connector. Using a DVOM, measure resistance between TP sensor terminals No. 1 and 3. Resistance should be 3.2-4.8 ohms. If resistance is not within specification, replace faulty TP sensor. If resistance is within specification, check for continuity in TP sensor circuits from TP sensor and PCM. See WIRING DIAGRAMS . Check for shorts to ground or power at both TP sensor terminals No. 1 and 2. Also, check for short to power at TP sensor terminal No. 3. Repair as necessary.
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.