When your 2007 Dodge's Check Engine" light comes on, there is a simple way to determine the diagnostic trouble codes yourself without the use of a diagnostic scanning tool, saving yourself a trip to a mechanic and possibly saving yourself some money. You might still have to have the Dodge worked on by a mechanic, but at least you can check the trouble codes yourself for free.
Insert the 2007 Dodge's ignition key into the ignition.
Turn your key to the "Acc." (Accessories) position. The Acc. position is the last position when turning your key toward you--opposite of the way you would turn the key when starting your 2007 Dodge.
Turn the key to the "On" position (turning key toward instrument panel, one click away from starting the 2007 Dodge--but do not start the Dodge. If you start the car at any point, you will have to start over.
Turn the key back to the "Acc." position and the On position two more times quickly.
Look for the diagnostic trouble code or codes to appear in the odometer field on your 2007 Dodge's instrument panel.
