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.
Code 14: Throttle Position Sensor
Using scan tester, access Throttle Position Sensor (TPS) test. With TPS fully closed, voltage should be .3-1.0 volt. Slowly press down on accelerator pedal. TPS voltage should smoothly increase to 4.5-5.5 volts with throttle fully open. Replace TPS if it does not test as specified.
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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.