DTC P1517: Throttle Actuator Control Module Internal Malfunction: Description

The Throttle Actuator Control (TAC) module contains data which is essential for proper electronic throttle control system operation. The TAC module continuously checks integrity of this data. When TAC module is unable to write or read data to and from Random Access Memory (RAM) or TAC module is unable to correctly read data from the flash memory or an internal TAC module processor fault is detected, this is communicated to the PCM across serial data and DTC will set.