CarMD can be used for a number of reasons. You can determine why the Check Engine light is on. You may want to check for potential problems before going on a long road trip. Or maybe you live in a state where they test state emissions “smog”. You can use it to check your vehicle before taking it for testing. If you’re looking for a used car to buy, you can use CarMD to check for potential problems before you buy. CarMD can be taken to the car dealership and a diagnostic test can be quickly performed on the used car. Even if the vehicle has been tampered with, a vehicle’s computer stores codes even if the Check Engine light wiring has been disconnected. CarMD will access these codes and display a red LED if any are present. Also, if the vendor has recently cleared the computer’s memory, the CarMD tool will indicate a possible problem with a yellow LED. You can be sure that you will be able to determine the condition of the vehicle before making a purchase.

On Board Diagnostics (OBD) is a universal program installed in a vehicle’s computer system. It is part of the mandate of the US government to help automakers reduce emissions from their vehicles. It is designed to detect faults, set a diagnostic code (DTC), and turn on the Check Engine light when there is a problem. All 1996 or newer cars, trucks, SUVs, and minivans made or used in the US have the most advanced OBD, called the Second Generation On-Board Diagnostic Program (OBD2).

Many vehicles that were manufactured in the 1980s and early 1990s use OBD1 technology. It is the predecessor of the current Second Generation Diagnostic Program (OBD2). Some vehicles built in 1994 and 1995 use OBD1 and others use OBD2 systems. CarMD will work on vehicles with an early OBD2 system; however, there will not be any information in the database to tell you what could be wrong.

When the Check Engine light comes on, it means that the vehicle’s on-board diagnostic computer has found a problem that may affect emissions. This problem can range in severity from a loose gas cap, which wastes fuel and causes contamination, to an engine misfire, which can cause permanent damage. In any case, you really don’t need to panic. Most of the time, this light is a vehicle’s way of saying “get me checked out soon!”

Ten percent of all vehicles on the road today are driving with the Check Engine light on. However, you shouldn’t do that for long periods of time without checking. It could be something as simple as a loose gas cap or it could be something potentially dangerous and expensive if you let it go.

The CarMD is a simple handheld device that will help you monitor the health of your vehicle and provide you with valuable information when something goes wrong. Although you will probably have to take it to a mechanic for repair, you will have a good idea of ​​what is wrong with your vehicle, what parts will be needed, and how much it will cost. This is valuable information that you should have to ensure that you are not persuaded to make repairs that are not necessary.