Section 483 (Symptom Troubleshooting [Engine Control System]): Foreword

WARNING: This page is about a different car, the 2005 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

Before proceeding with the following troubleshooting,

See HOW TO USE THIS SERVICE INFORMATION to understand basic troubleshooting procedures.
Perform the diagnostic trouble code (DTC) inspection.
If a DTC is displayed, proceed with the appropriate inspection steps.