What does code P1514 mean?

Q: What does code P1514 mean?

Throttle Body Performance. P1514 on GM vehicles indicates the engine control module (ECM) has detected a performance problem with the electronic throttle body, typically a mismatch between the commanded throttle blade position and the actual position reported by the throttle position sensors. The ECM sets this code when the throttle body fails to respond correctly during a self-test or while the engine is running, often due to carbon buildup, a faulty throttle body motor, or wiring issues.

DTC codes / GM codes / P1514

P1514 · GMThrottle Body Performance

P1514 on GM vehicles indicates the engine control module (ECM) has detected a performance problem with the electronic throttle body, typically a mismatch between the commanded throttle blade position and the actual position reported by the throttle position sensors. The ECM sets this code when the throttle body fails to respond correctly during a self-test or while the engine is running, often due to carbon buildup, a faulty throttle body motor, or wiring issues.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.