thanks elrojo but that is what the blinking light is giving me 4, 6, 19, 20, i see u have nothing for 6, 19, 20, what is a potentiometer for #4. i thought there was no ovp on a 94 e420 if so where is it . also with the abs light would that have to do with the brake light switch i thought i read that some where on this forum some while back