Loose Ecm Tcm Ground Connection Techlink
Refer to our Generic OBD II code list for definitions on all other GM diagnostic trouble codes OnStar shows a code of U18, lost communication with fuel pump driver control module There are several issues with this vehicle which makes me think this car was a lemon, unreported by original owner, or in a flood;Please use the form on our Contact Page to get in touch with us We certainly understand how frustrating it can be to look for a code definition and have it not online when you need it
