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.
Circuit Description
The Throttle Position (TP) sensor is mounted on throttle body assembly. Sensor is equipped with potentiometer with common supply and ground circuits, and independent signal circuits. As throttle opens, signal wire on sensor No. 1 read a higher voltage and voltage in signal wire for sensor No. 2 decreases. DTC will set when signal being received by ECM conflicts with MAF reading.
DTC will set under the following conditions:
- Battery voltage greater than 7 volts.
- TP sensor No. 1 and TP sensor No. 2 readings differ by greater than 6.3 percent for more than 140 milliseconds.
- TP sensor No. 2 reading conflicts with current MAF reading.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.