Here's the proper approach:
1. Diagnose the Problem: A 1994 Ram 1500 uses an OBD-I system, which is different from the later OBD-II systems. You'll need a OBD-I code reader specific to that year and model. Auto parts stores often have these code readers available for rent or purchase. The code reader will give you a diagnostic trouble code (DTC). This code will indicate the specific problem the computer has detected.
2. Repair the Problem: Once you know the DTC, you can research the likely cause (online forums, repair manuals, etc.) and fix the problem. This might involve replacing a sensor, fixing a wiring issue, or performing other necessary repairs.
3. Clear the Code (After Repair): *Only after* you've successfully addressed the issue causing the CEL, you can clear the code. For OBD-I systems, this often involves disconnecting the battery's negative terminal for about 15-30 minutes. This resets the computer's memory. Some OBD-I scanners also have a "clear codes" function.
Important Considerations:
* Don't just disconnect the battery and hope for the best. If the problem persists, the CEL will likely return.
* Using a generic OBD-II scanner won't work. You need an OBD-I scanner compatible with your 1994 Dodge Ram 1500.
* A repair manual specific to your truck's year and engine is invaluable. It will help you understand the DTCs and how to troubleshoot and repair the identified problem.
* If you're not comfortable working on your vehicle yourself, take it to a qualified mechanic. They have the tools and expertise to properly diagnose and repair the issue.
Simply disconnecting the battery is a temporary measure and will not solve the root cause of the Check Engine Light. You *must* find and fix the underlying problem to prevent further damage and ensure your vehicle's safe operation.
