Check Eng Light for '97 J30

[rnd]

HELP!!!! I have a '97 J30 and the check engine light comes on at least once a year--I take in to the dealer and they replace this or that sensor and it works fine for a while. It seems that I keep spending money on new sensors and I know they have replaced the same one twice--usually after the repair warranty runs out

Can some tell me how to reset the check engine light and see if it is a sensor or just the local weather that makes this happen??? thanks

[Ebbtide]

I got a code reader (70.00) from the auto parts store. It will tell you what's wrong and clear the codes. It will work on all 97 and newer cars with the OBDII port.