OBD Codes C1284 & C1286. 2001 Cadillac ElDorado ETC 84,000
 

Could a loose ground be throwing these codes. The interior seats & carpeting were completely taken out then placed back in. Display: Service Stability System.
When driving it does not pull to any side or attempt to brake. what it does do is loose power almost like it was shifted into neutral, engine accelerates.