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Dodge Ram 1994-2001: How to Reset Check Engine Light

This article will show you how to reset that pesky CEL and find out if you really have a problem, or if it's just a faulty code.

By Brett Foote - July 8, 2015

This article applies to the Dodge Ram 2nd Generation (1994-2001).

The check engine light is truly a blessing and a curse. When they function properly, they warn you of potential problems with your truck. When they don't function properly, they are annoying. Unfortunately, pretty much every vehicle is known to throw a code for no real reason every now and then, which is why most people will tell you to reset the light and see if it comes back on before taking action. But just how do you reset a check engine light? Keep reading as this article will show you how it is done.

Materials Needed

  • 1/2" wrench
  • OBD-II scanner (optional)

Step 1 – Disconnect negative battery terminal

If you don't have or don't want to buy an OBD-II scanner, you can reset your check engine light by disconnecting the negative (black) battery terminal using a 1/2" wrench. After you disconnect the terminal, turn the ignition to the "on" position for ten seconds, turn it off, and then reconnect the negative battery terminal. If the light comes back on, you still have an issue. This method is quick, easy, and free, but it will also mean that you will have to reprogram things like your preset radio channels and other settings.

Figure 1. Disconnect the negative battery terminal.

Step 2 – Use an OBD-II scanner tool

If you have an OBD-II scanner tool, it's quick and easy to reset your check engine light. These scanners allow you to reset the light, as well as read the code to see what sort of problem you might be having (or what problem your truck "thinks" it might be having). If the light comes back on after you reset it, you may very likely have an actual problem. OBD scanners are available in a wide variety of price ranges and features. Simple ones will cost you no more than $100 and will get the job done just fine.

Figure 2. An OBD-II scanner tool.

Step 3 – Take it to an auto parts store

Auto parts stores such as AutoZone and Advanced Auto will commonly scan and reset your check engine light for free if you stop by. This is a great option if you don't want to drop the money on a scanner or have to reset everything after disconnecting the negative battery terminal. Plus, you can pick up some parts while you're there if needed.

Figure 3. Auto parts stores will scan and reset your code for free.

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