jumper with a piece of wire t & e1 in diag box in the engine bay, jump in car, turn key to ign and count the codes from engine check light
example code
21
flash flash... flash
34
flash flash flash... flash flash flash flash
2 codes stored
14 & 52
flash...flash flash flash flash............. flash flash flash flash flash... flash flash
now go here and find out what your code means
http://www.cygnusx1.net/supra/library/TSRM.../fi/FI_026.html