You can pick up a code reader that can clear the error. They range in price from $45 to 300+
If the problem is truly fixed the light will go out after a # of miles and on off cycles. anyone that can read the codes can reset them, but laws some places do not permit.
SOURCE: does the check engine light reset itself once the
If you are a DIY'er you can get a OBDII scan tool that connects to your laptop that can tell you the error code and allow you to reset your check engine light. This will save you $80 each time over going to a mechanic for a diagnostic. They are easy to use and will help you know what the issues are if you do have to go to a mechanic.
Check out http://www.fitityourself.netau.net/OBDII.html
Or you can try disconnecting your vehicles negative battery lead for 5 minutes. That should clear the code. if you check engine light comes back on after several days, you still have a problem
Let the light reset itself. When the engine trouble has been fixed, a Chrysler engine resets the "Check Engine" light automatically after 40 successful runs. If it doesn't reset, the problem likely still exists.
Force the computer into "Successful Run" mode. Start the Chrysler and drive forward a few feet, then put it in reverse and go backward a few feet. Do this three times and shut the engine off. Crank it again to see if the light has been on.
Disconnect the battery for several minutes. This resets everything in the vehicle, including the clock and radio settings. Reapply the radio settings and adjust the time when the battery is reconnected.
Use a diagnostic scanner to clear the codes. Connect the scanner to the test port, also called the ALDL (Assembly Line
Diagnostic Link) usually located under the dash (see Resources section). Turn the engine "On" and follow the prompts on the scanner to pull the engine codes. Select the option to clear them.
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