To properly address the check engine light:
1. Get the diagnostic trouble code (DTC): This is the key to understanding what's wrong. You can do this in a few ways:
* OBD-II scanner: This is the best option. You can buy a relatively inexpensive code reader at most auto parts stores. Plug it into the OBD-II port (usually under the dashboard) and it will display the DTC.
* Auto parts store: Many auto parts stores will scan your car for free and tell you the code(s).
2. Research the DTC: Once you have the code, search online (e.g., Google the code plus "Chrysler PT Cruiser") to find out what the code means. This will give you an idea of the potential problem.
3. Repair the problem: Based on the DTC and your research, you can try to fix the problem yourself (if you're mechanically inclined) or take it to a mechanic.
4. Clear the code (after repair): *Only after you've addressed the issue causing the check engine light* can you clear the code. Most OBD-II scanners have a function to clear codes. Some advanced scanners even allow you to erase specific codes. Alternatively, disconnecting the car battery's negative terminal for about 15-30 minutes can sometimes clear the code, but this is less reliable and may not work for all codes.
Warning: Ignoring the check engine light can lead to further damage to your vehicle, potentially costly repairs, and even safety hazards. Don't just reset the light; find and fix the underlying problem.
