Handling No Trouble Code Problems
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
After reading System Description and Functional Operation, you should have a better understanding of the theory and operation of the on-board diagnostics and how this relates to the diagnosis of a vehicle that may have a driveability related symptom or complaint. When there are no trouble codes present, refer to the no trouble code (*) tests.