| Pin | Function | Speed |
|---|---|---|
| 1 | GM_LAN Single Wire CAN-H | 33 kbps |
| 2 | Not checked | - |
| 3 | Medium Speed CAN-H | 125 kbps |
| 4 | Vehicle GND | - |
| 5 | Signal GND | - |
| 6 | High Speed CAN-H | 500 kbps |
| 7 | Not checked | - |
| 8 | Not checked | - |
| 9 | Not checked | - |
| 10 | Not checked | - |
| 11 | Medium Speed CAN-L | 125 kbps |
| 12 | Not checked | - |
| 13 | Not checked | - |
| 14 | High Speed CAN-L | 500 kbps |
| 15 | Not checked | - |
| 16 | Battery | - |