Here's the proper approach:
1. Diagnose the problem: The best way to do this is by using an OBD-II scanner. These are relatively inexpensive and readily available at auto parts stores. The scanner will read the diagnostic trouble codes (DTCs) stored by the computer, which pinpoint the specific problem. This is crucial before attempting anything else.
2. Fix the problem: Once you know the DTC, you can research the likely cause and repair it. This might involve replacing a faulty sensor, fixing a leak, or addressing a more significant mechanical issue.
3. Clear the code (after the repair): *Only after you've successfully repaired the problem* 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 buy parts from them. Disconnecting the battery for a short time is generally unreliable and may not clear all codes.
Important Considerations:
* Don't just reset the light: This is a temporary fix at best. The underlying problem will likely persist, potentially causing more serious damage or even making your vehicle unsafe to drive.
* Professional help: If you're not comfortable diagnosing and repairing the problem yourself, take your Venture to a qualified mechanic. They have the tools and expertise to properly diagnose and fix the issue.
In short, resetting the SES light is the last step, not the first. Always address the root cause of the problem first.
