Possible causes are extremely varied and could range from something minor (like a loose gas cap) to something serious (like a failing catalytic converter).
To find out the specific problem:
* Get the Diagnostic Trouble Code (DTC): You'll need to use an OBD-II scanner to read the trouble code stored by the car's computer. Auto parts stores often offer this service for free. The code will give a much better indication of the underlying issue.
* Consult a repair manual or online resources: Once you have the DTC, you can research what it means. Many websites and repair manuals explain common codes and their likely causes.
* Take it to a mechanic: If you're not comfortable diagnosing and repairing the problem yourself, take your Camry to a qualified mechanic. They can accurately diagnose the problem and make the necessary repairs.
Ignoring the check engine light is not recommended. While it might be a minor issue, it could also indicate something that needs attention to prevent further damage or safety hazards.
