2014+ GM BCM Bench Programming
The gray connector isn't necessary for cloning tools, only needed for linking different networks or stock programming. The BCM usually powers up with only the 4 pins on the white X1 connector. If connection fails add pins 5/6 on the green X3 connector for ignition power to activate the BCM. (Click on the picture for a bigger view)
Building a bench setup?
- Brute Force Bench Flasher V1 — from $175 →
- Bench harnesses for PCM / BCM / TCM / ABS — from $75 →
- Rather we just flash it? Send it in →

