The problem could range from something minor (like a loose gas cap) to something major (like a failing catalytic converter). To find out the *specific* problem, you need to:
* Get the diagnostic trouble codes (DTCs) read: You can do this in a couple of ways:
* OBD-II scanner: Buy a relatively inexpensive OBD-II code reader from an auto parts store. Plug it into the OBD-II port (usually under the dashboard) and it will display the codes.
* Auto parts store: Many auto parts stores will read the codes for free. They can then tell you what the codes mean, giving you a better idea of the problem.
* Mechanic: A mechanic will have the tools and expertise to read the codes and diagnose the issue.
Don't ignore the light. Driving with a malfunctioning system could cause further damage to your vehicle or lead to unsafe driving conditions. Get it checked out as soon as possible.
