Circuit/System Description

The throttle actuator control (TAC) module contains data, which is essential for proper TAC system operation. The TAC module continuously checks the integrity of this data. If the TAC module detects a fault with electrically erasable programmable read only memory (EEPROM), the TAC module detects a low voltage while the voltage on the powertrain control module (PCM) is not low, or the TAC module detects the vehicle ID from TAC module does not agree with the vehicle ID from the PCM, DTC P2107 sets. If the TAC module is unable to write or read data to and from random access memory (RAM), the TAC module is unable to correctly read data from the flash memory, or an internal TAC module processor fault is detected, DTC P2108 sets.