How do you reset engine emissions amber light on dash board of 2000 Ford Taurus?

You can't simply reset the amber engine emissions light (Check Engine light) on a 2000 Ford Taurus without addressing the underlying problem. The light illuminates because the car's onboard diagnostic system (OBDII) has detected a fault. Resetting the light without fixing the problem will only cause it to come back on.

Here's what you should do:

1. Get the Diagnostic Trouble Code (DTC): You need to find out *why* the light is on. You can do this in a few ways:

* OBDII Scanner: The most reliable method is to use an OBDII scanner. These are relatively inexpensive and available at most auto parts stores. The scanner will read the DTC code(s), which you can then look up online (many free resources are available) to determine the problem.

* Auto Parts Store: Many auto parts stores will read the code for free. They can often give you a preliminary diagnosis as well.

2. Fix the Problem: Once you know the DTC, you can begin to troubleshoot and repair the underlying issue. This could be anything from a loose gas cap to a more serious problem requiring professional repair.

3. Clear the Code (After Repair): *Only* after you've repaired the problem, you can clear the code. You can typically do this with your OBDII scanner. Some scanners have a "clear codes" function.

Do NOT attempt to reset the light without knowing the cause. Ignoring the problem can lead to further damage to your engine and potentially harmful emissions.

In short: Focus on fixing the problem, not just resetting the light. The light is a warning system, and ignoring it isn't advisable.