Here's what you should do:
1. Diagnose the problem: The best first step is to use an OBD-II scanner. These are relatively inexpensive and can be purchased at most auto parts stores. Plug it into the OBD-II port (usually under the dashboard) and it will read the diagnostic trouble codes (DTCs). These codes will tell you *what* the problem is. You can then search online for the meaning of the codes to get a better understanding.
2. Fix the problem: Once you know what the problem is, address it. This could involve anything from replacing a faulty sensor to a more significant repair. You can attempt simple repairs yourself if you're mechanically inclined, or you can take it to a mechanic.
3. Clear the code (after repair): *Only after you've repaired the issue* should you clear the code. Many OBD-II scanners have a "clear codes" function. Some auto parts stores will also clear codes for free if you purchased a scanner or parts from them. Alternatively, disconnecting the battery's negative terminal for about 30 minutes can sometimes clear the code, but this isn't always reliable.
Important Considerations:
* Don't ignore the check engine light: Driving with a malfunctioning system can damage your engine and potentially lead to costly repairs down the road.
* Generic vs. specific scanners: Basic OBD-II scanners will read the codes. More advanced scanners can provide more detailed information.
* Mechanic's expertise: If you're uncomfortable diagnosing or repairing the problem yourself, take your Magnum to a qualified mechanic.
Simply resetting the light without fixing the underlying problem is a temporary fix at best and potentially dangerous. Focus on diagnosing and repairing the root cause.
