The engine light came on and the gas cap was loose, now the light won't go off, can you tell me how to reset the computer without disconnecting the battery cables ? it is a 2004 Sebring, V6

Without disconnecting the ECM. Try disconnecting the battery. Both negative and positive for about 30 minutes.

This is calle dthe check engine light , this light comes on when the computer sees a problem, the computer stores a code in its memory, you can go to alot of autopart stores most of them will scan the computer for free and get the codes with a scan tool the code will tell you what is failing, for example it may be as simple as a loose gas cap. check and see if the gas cap is loose, if the cap is loose then tighten it and drive car for a week the light will reset if that was the problem, the computer is always testing all systems and if it was the cap the fuel system will pass the test and the light will go out if its not a loose cap then have it scanned, the code will tell you, for example lets say the code is po532, b1 o2 sensor heater, this would mean the front oyxgen sensor heater is bad, or that the connection to sensor is bad, hope this helps good luck.

your ecm (cars computer) is storing codes could be as simple as a loose gas cap could be a phantom code check gas cap disconnect battery (neg first) for 1 min start and drive light should be off at this point if it comes back on take it to auto zone for free diagnostics they can even save you the hassle of disconnecting battery they can read and reset ecm for free

if the cap was loose then just drive around and the light should go out in a week or so depending on how many start/stop cycles you do. You could disconnect the neg battery but that would mess with other things, sooo just be patient. The light will go out on its own after the computer is satisfied there is no leak. A scanner can reset the light.

Check engine light might have came on because of loose gas tank cap, but it's a good idea to read the code and check if it's not something else, you can take your car to an Auto Zone and they read the code for free and tell you the cause also. But if you want to reset the check engine light, only way is to disconnect the battery terminals and let it set overnight, check engine light will be reset. Hope it helps and let me know if you need more advice. Please don't forget to rate the answer it helps with my ratings, thanks!

a code stored in the computer will tell you what system triggered the check engine light.
The most common is an o2 sensor or evap code set off by a loose or faulty gas cap.after the vehicle is started about 50 times with no fault the light will go out.You can disconnect the battery for 1 minute and reset the computer,and unless the fault is still there,the check engine light will not come back on.Before you do this make sure you have the radio code handy,disconnecting the battery will lock out the radio on most new vehicles.

Sometimes It will set a Code and After its Corrected the Light Needs to Be Manualy Reset By DISCONNECTING the POSITIVE BATTERY TERMINAL for 30-60 SECONDS AND THIS WILL RESET THE LIGHT.

pepboys will read it at no charge

you may have to reset the engine light. These cars are all computerized. Call the dealership and tell them that you had to replace the gas cap as it was faulty and caused your check engine light to come on. Ask them if they can reset the "computer" or if they can tell you how to do it (if that is possible).

Don't know if that will work, but my dad has been in the car business for over 35 years - I tend to listen to most the things he says......

I f you dont have a code reader try disconnecting the neg (black) side of the battery and let it stay for about 10 min this should re boot computer