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 (TP) Sensor
With engine off, unplug TP sensor harness connector. Check and record resistance between terminals No. 2 and 3 with throttle fully closed. See Fig 1. Check and record resistance between terminals No. 2 and 4 with throttle fully closed, then with throttle fully open. If readings are not as specified, replace TP sensor. See the TP SENSOR SPECIFICATIONS table.
| Throttle Position & Terminal No. | Specification | |
|---|---|---|
| Terminals No. 2 & 3 | 12,000 Ohms | |
| Terminals No. 2 & 4 Ohms | ||
| Throttle Fully Closed | 10,000-12,000 Ohms | |
| Throttle Fully Open | 3000-5000 Ohms | |
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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.
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