Chevrolet Traverse DTC Code U0100 U0073 U0121 U0140 ECM PCM diagnosis and possible fix

1981 1982 1983 GM Chevy Cruise control transducer rebuild service RESUME & NON. The unit in the picture is a resume style unit just doesn’t have the resume valve attached. AS I HAVE BEEN RECEIVING UNITS WITH NO NOTE/ OR ANYTHING LETTING ME KNOW WHAT IT IS FOR AND IT GETS HARD TO KEEP STRAIT.