check engine light

yesterday my check engine light came on for the second time, the first was a couple of months ago, the first time it did, i disconected the battery for about 10 mins. reconected battery, light went off. i am gonna try that again. both times the light has come on is when i go to stop and park it. i don't have access to a code reader.
any ideas what could be the problem?
i have a 1999 cherokee sport, auto tranny, 4x4.
milage about 110,000. no abuse at all

ps. i am new to this forum, this is my first post.

thanks
darrel

Well there are literally a zillion reasons why your check engine light can come on. Some of the easiest reasons being a loose gas cap or disconnected sensor. But to be honest for u to really get any help and be able to diagnose and hopefully repair the issue you are gonna need a code reader. Go to a nearby autozone and rent it and get the codes.

pete

depending on what area you are in most parts stores have a obdII scaner. They generaly will scan for free because they want you to buy the parts there.

Hey drobe5150, welcome to ! Check out this link to Gojeep, it shows how to pull your own codes without a scanner. Post whatever you find out the problem is so others can benefit too.

http://www.go.jeep-xj.info/HowtoECUcodes.htm