* OBD-II Diagnostic Trouble Code (DTC) Readiness Monitors: Your 2002 Saturn, like most vehicles from that era, uses an OBD-II system. To ensure all the emissions-related monitors are ready for inspection, you need to perform a drive cycle that activates them all. These cycles *vary significantly* depending on the specific Saturn model (SL, SC, Ion, L-series, etc.) and even the engine type. There's no single answer. You'll need to consult a repair manual specific to your 2002 Saturn's year, make, model, and engine. Many online forums dedicated to Saturn vehicles can also offer guidance based on your specific model.
* Emissions Testing: Your state or region might have specific emissions testing procedures that require a particular drive cycle. Again, this is highly localized and not something that can be generally stated. Check your local DMV or emissions testing facility for their requirements.
* Fuel Economy Testing: If you want to measure your fuel economy, there's no single standardized drive cycle, but consistently driving at various speeds and under different conditions (city and highway) will give you a more realistic picture.
In short: To find the appropriate drive cycle, you MUST specify your goal (emissions testing, readiness monitor completion, etc.) and provide the *exact* year, make, model, and engine of your 2002 Saturn. Then, consult a repair manual or online forums for that specific vehicle.
