1993 model year has a diagnostic light counter... There are websites that
tells you how to use it.
At the battery... where you got the square diagnostic plug... take cover
off... and you should see a button there with a led light next to it... With
ignition on... press the button for 3 seconds and let go... the light will
Count the blinks... if there are more than two, it will pause and then blink
another set of codes until it repeats itself.
Once you write down the codes, look it up on the internet... again, people
post the code info.
I think to delete these codes, you have to hold down for 15 seconds.