The 3cm Fracture Zone: A Production Line Autopsy of OBD2 Cable Failures

If you’ve spent time diagnosing vehicle electronics, you’ve witnessed this ghost in the machine. A scan tool display flickers. CAN bus communication drops. Jiggle the cable where it meets the OBD2 connector, and functionality returns—temporarily. In our Failure Analysis Lab, this scene has a physical signature: a fracture line, consistently appearing three finger-widths from the connector […]