Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Any of the following conditions are detected:

The TAC module determines that the read only memory (ROM) data is incorrect.
The TAC module determines that the random access memory (RAM) data is incorrect.
The PCM determines that the serial data received from the TAC module is not rational.
The voltage of the A/D converter located inside the TAC module is not within the specified value.