'02 Cavalier check engine and trac off lights are on...?

first of find the resion that your coolant fan is blowing the fuse ether the motor is sezing or shorted out that will need to be replace or repaed and the ligh tis to let you know that your car is runing hot ansd it need repair soon or dig a hole and drive your car into it and cove with dirt and place a sineon top saying hear lie rip

I also have a 2002 Checy Cavalier and it did the comparable ingredient, and seems the two one among my O2 sensors went undesirable. I replaced the only on the best, yet there is one on the backside besides that had to be substitute. the sole ingredient that i found with the Cavalier's is that the sensors bypass undesirable very devoid of postpone because of fact now i could desire to replace the best back after 1yr. no one sells the sensors however the broker, so good success.

something similar happened to me and i replaced the fuse 3 times till i did a deeper examination and i had another fuse blown but this one is wasn't a small little fuse like the regular ones this one that i replaced is the square ones the one that have a clear plastic on top they look like a cube

and it wasnt blown it was just darker then the other ones and i replaced ti and the samll fuse didn't blow againg ihope this helps you good luck

well if your fan fuse is blowing then your fan is prob about to go out. this will cause you engine light to come on. as for the trac light im not sure

Did you check the brain? Do you have any after-market installations, like AC?