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A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.

Remember, the code reader won't tell you how to fix the check engine light—the code it reads just directs you to the fault. From there, unleash your mechanical prowess and discover the cause!

It’s something no driver wants to see: a check engine light glowing on the dashboard. You know something’s wrong with your car—but what, exactly? That’s where an OBD2 code reader comes in ...

Everyone has gotten the Check Engine light. But did you know that you don't have to pay to find out what it means. You can do it for free.

If your check engine light is on, but you do not have any trouble codes stored, there are some possible causes why this may be the case. Read on to find out!