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.
DTC P1516: Throttle Actuator Control Module Throttle Actuator Position Performance: Description
The Engine Control Module (ECM) compares the actual throttle position to the commanded throttle position by comparing Throttle Position (TP) sensor readings to the commanded throttle position of the ECM. DTC P1516 will set if the commanded throttle plate position differs from a calibrated range from the actual throttle plate position (based on TP sensor values) for a certain length of time or if a throttle actuator circuit fault exists.
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.