Why Your ECU Bench Flashing Fails at 80%: The OBD Cable Specification Gap
Last month I spent three hours on a Vector VN1630A setup that kept dropping CAN FD frames during a bootloader erase. The ECU passed on a reference bench. The software build was identical. The only variable left was the two-meter J1962 harness we had pulled from a spare parts bin. It was black, it had the right connector, and it tested fine on a continuity checker. […]
Why Your Diagnostic Cables Fail Burn Tests (And Why UL 94 V-0 Jacket Material Is Not Optional)
In 2019, we cut open a 22 AWG diagnostic harness from a supplier in Shenzhen. The jacket was marked “FR” on the print legend. It burned for 22 seconds and dripped flaming PVC onto the workbench. That was the day we stopped trusting the words “flame retardant” on a drawing. The difference between a cable that melts […]