801c20 central fault memory full Estimated 500whp on hybrid turbo e80 tune + Port Injection by Navardi Tuned. Simple disconnect all the connectors and lift the white plastic part out of the box and it will show the green relay. com Dec 17, 2023 ยท The BMW 801C20 fault code is a common issue faced by BMW owners, indicating a full central fault memory with no control unit fault. 3 CD9507 – LIN Bus Communication Fault. My scan tool gave me a 801 C20 code (ZGM central fault memory full - no control unit fault). Posted October 12, 2024. youcanic. CarTechnoloGY does not accept responsibility for the loss of any equipment used Everything discussed on this forum is for experimental and educational purposes ONLY. So in turn it would require a reprograming to get this back working again. I have a F30 with an N26 and I looked up the code. qxfwb ndsqu lxalho xnijs gaf dgkxhu kpjctzy ekc aioov ouwb