That is an open question. What part of the OBD system are you looking at?
YOU WILL NEED AN OBD II SCANNER AND THE LOCATION OF THE PLUG IS IN THE CENTER CONSOLE.(FRONT PASSENGER SIDE OF CENTER CONSOLE)
You need an OBD II Reader (On Board Diagnostics) to plug into the socket located inside the console between the driver and passenger seats. If you do not want to buy and OBD II Reader then go to an auto parts store and ask them to read the error codes and reset the Check Engine Light..
OBD II port.
if it was manufactured after '96 it should have an OBD II port located underneath the dashboard near the steering column. take an OBD II scanner and find the code that was tripped and reset it.
You can try disconnecting the battery for about 10 minutes. You can also go to any Autozone if you have one locally and they will reset it for you for free. or, you can simply turn your key to the II position on the ignition and your indicator lights should be on. then while still in position II push your trip set button and hold till service light starts blinking,now you have reset your service light for another 7,500 miles.
hook OBD II scanner up and clear codes. Disconnecting battery doesn't always work on OBD II
Yes, with an OBD II reader. Disconnecting the battery won't reset it.
That car uses an OBD-II computer interface system, and you must use an OBD-II interface device to reset it. NOTE: Some auto shops, and parts suppliers, offer this service at a low or no fee.
Take off negative battery cable for 15 seconds and reinstall,that should do it.
by connecting an OBD II code reader
This has to be reset with an OBD-II code reader/diagnostic tool. You can get it done for free at any AutoZone, Pep Boys, or O'Riely's. FYI there is probably a reason the "service engine" light is on. You might want to find out what OBD-II codes are flagged.
You get a OBD II reader (http://www.nextag.com/obd-ii-code-reader/search-html), which will read the code, tell you what the problem is, and if desired, reset the check engine light. If you don't fix the problem,however, you are not guaranteed that the light will go away permanently.