In this case study with Dave Hobbs, we learn about the complexities and challenges of diagnostics of data bus systems. Dave talks about a Chevy Malibu he once worked on: it couldn’t start several modules. He talks about how, sometimes, bus issues can be things you would never suspect and how keeping up with learning about these systems and understanding their complexities is necessary if you want to work on cars with these problems.
Dave Hobbs presents an interesting case study of a Chevy Malibu exhibiting battery discharge issues, no start problems and with a B1516 BCM code. Dave discusses the associated TSB and smart charging system components related to this issue.