“OBD2 Port Not Communicating”: The Fleet Manager’s Guide to Permanent Hardware Solutions
The scanner flashes “NO COMM” for the third time this week. You’ve swapped tools, rebooted systems, and the vehicle remains silent. This isn’t a software glitch—it’s a hardware failure that’s erasing your operating margin with every minute of downtime. Most diagnostic guides start with the fuse. We start with a different question: What changed just before […]