What is the meaning of OBD-II code P1516, and what are the possible causes and solutions for this code?

OBD-II code P1516 refers to a fault in the Throttle Actuator Control (TAC) system, specifically in the control module performance. The possible causes of this code are: A failing throttle body assembly A damaged wiring in the TAC system A damaged throttle position sensor (TPS) A damaged accelerator pedal position sensor (APP) A damaged engine management system To diagnose the issue, a mechanic may use an OBD-II scanner to retrieve the code and then perform a visual inspection of the throttle body assembly, TAC system components, and wiring. To fix the issue, the mechanic may replace the faulty component or repair any damaged wiring. In some cases, clearing the code and resetting the vehicle's computer may resolve the issue if it was a temporary fault.