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 (ETC) system operation. The TAC module continuously checks the integrity of this data. When the TAC module is unable to write or read data to and from Random Access Memory (RAM) or the TAC module is unable to correctly read data from the flash memory or an internal TAC module processor fault is detected. This communicated to the Powertrain Control Module (PCM) across serial data and this DTC sets.