Here's what you *should* do:
1. Get the Diagnostic Trouble Code (DTC): This is the key to understanding the problem. You can do this a few ways:
* OBD-II Scanner: Buy a relatively inexpensive OBD-II scanner from an auto parts store. Plug it into the OBD-II port (usually under the dashboard) and it will read the trouble codes. These codes are crucial for identifying the issue.
* Auto Parts Store: Many auto parts stores will read the codes for free. Just bring your vehicle in.
2. Identify the Problem: Once you have the DTC, look it up online (many resources are available) or use a repair manual specific to your 2002 Dodge Caravan. This will tell you what the code means and likely what needs fixing.
3. Repair the Problem: This is the most important step. The CEL won't go off until the underlying problem is fixed. Depending on the issue, you might be able to fix it yourself (if you're mechanically inclined) or you might need to take it to a mechanic.
4. Clear the Code (After Repair): Once the repair is done, you can clear the code. Many OBD-II scanners have this capability. After clearing the code, drive the vehicle for a while and see if the light comes back on. If it does, there's still a problem that needs addressing.
Important Considerations:
* Don't just disconnect the battery: This will temporarily turn off the light, but the problem will still exist and could cause more damage.
* Don't ignore the light: Driving with a malfunctioning system could lead to costly repairs or even safety hazards.
In short, turning off the Check Engine Light is a symptom of solving a problem, not a solution itself. Focus on *fixing the problem*, and the light will turn off as a result.
