GM Error Code P1517: How to Fix It

Q: Can I drive with GM error code P1517?

Driving with P1517 is not recommended as it affects throttle control and can cause unpredictable engine behavior, reduced power, or stalling. Have it diagnosed and repaired immediately for safety.

Q: What causes GM error code P1517?

P1517 is typically caused by a faulty throttle body assembly, damaged wiring to the TAC module, contaminated throttle body, or failed throttle position sensors within the throttle body unit.

Q: How much does it cost to fix P1517?

Repair costs range from $50-200 for cleaning and minor repairs, up to $400-800 for throttle body replacement including labor. Diagnostic fees typically add $100-150 to the total cost.

Q: Will clearing the code fix P1517?

Simply clearing the code will not fix the underlying problem. The code will return if the TAC module performance issue is not addressed through proper diagnosis and repair.

Q: How do I prevent P1517 from happening again?

Regular maintenance including air filter changes, using quality fuel with injector cleaners, and having the throttle body cleaned during routine service can help prevent P1517 from recurring.

Abstract

GM error code P1517 indicates a problem with the Throttle Actuator Control (TAC) module's throttle command performance. This critical error affects your engine's throttle response and can cause reduced power, rough idling, or even prevent the vehicle from starting safely.