Conditions for Running the DTC
WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The module runs the program in order to detect a check sum error after each power up. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.