How Do I Reset the Check Engine Light on a RAM 1500?

2020 Ram 1500

Learning how to reset the check engine light on a RAM 1500 is easy! It requires these three steps:

  1. Disconnect the negative (ground) cable from your battery.
  2. Wait 20 minutes.
  3. Reconnect the negative cable.

Following the above procedure should reset your RAM 1500 internal computer. In some models — especially older ones — you may have to drive 50 miles after this procedure to re-calibrate the computer. 

*Note: Disconnecting and reconnecting the battery will reset the security system and other electronic systems and devices inside the vehicle as well, like the radio and clock. It may also wipe out seat memory settings.

Not sure why your check engine light turned on in the first place? Check out our other service tips before you take any chances on the roads near East St. Louis. Determining the cause of a check engine light is important. Following the above procedure assumes that you’re aware of the reason your check engine light was on, and that reason wasn’t related to any serious engine issues. If you’re unsure if your vehicle is safe to drive with a check engine light, read on for more helpful service tips and suggestions.

Why is My RAM Check Engine Light On?

There are many reasons your check engine light could be on, from a loose gas cap to a faulty solenoid. When you see that your check engine light has been activated, the first thing to to do is figure out what’s happening:

  1. Make Sure it’s the Check Engine Light: With so many warning lights common to new vehicles, it’s easy to mistake another warning light for the check engine light. When in doubt, check your vehicle’s owner’s manual.
  2. Check Your Gas Cap: A loose or faulty gas cap is the most common reason for your check engine light coming on, and also among the easiest to remedy! First, you’ll need to remove the old gas cap and clean the area where it screws in. Then, install. Next, disconnect the battery, as described above. Reconnect it, and the check engine light should turn off! If you have your own OBDII fault code reader, you can also read the codes, then remove the gas cap and install the new one, and then reset them.
  3. Check the Codes: An automotive diagnostic scanner, AKA OBDII fault code reader can help you diagnose the cause of your check engine light. Many of these can also clear the code and turn off the warning light. If you’re like most Belleville or Smithton area drivers, you’ll probably feel more comfortable having a professional, such as the certified auto techsat the Auffenberg CDJR service center, take a look at your vehicle. After all, it’s better to err on the side of caution.

Our Service Center is Here to Help with Your Diagnostic Needs

Do you require assistance with troubleshooting issues related to your RAM 1500 check engine light? Have you decided after learning how to reset the check engine light on your RAM 1500 that you’d rather leave it to the professionals? Either way, Auffenberg CDJR can help. Contact our service technicians now for additional assistance. You can also easily schedule a service appointment online.

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