OBD2 Port Not Communicating: A Forensic Hardware-First Diagnostic Protocol
When your scan tool flashes “No Link,” the immediate instinct is to blame software or protocol mismatch. But in our failure analysis lab, where we dissect hundreds of returned cables annually, the data tells a different story: over 80% of communication failures originate in a neglected physical gap—a micron-level contact issue between pin 16 and […]