J1939 Connector Pinout Decoded: A Guide to Every Signal from CAN Hi to Battery Ground
You’re staring at a heavy-duty 9-pin Deutsch DT connector in your hand. The diagnostic tool is on, the software is ready, but the screen relentlessly shows “NO COMMUNICATION.” You’ve verified the obvious, yet the issue remains. Often, the solution—or the decisive next step—is found not in the software, but in the electrical roadmap defined by […]