| Pin | Wire Color | Function |
|---|---|---|
| 1 | - | Not Used |
| 2 | PPL | DLC Class 2 Serial Data |
| 3 | - | Not Used |
| 4 | BLK | Ground |
| 5 | BLK/WHT | Ground |
| 6 | TAN/WHT | High Speed GMLAN Serial Data(+) (HP2) |
| 7-13 | - | Not Used |
| 14 | TAN | High Speed GMLAN Serial Data(-) (HP2) |
| 15 | - | Not Used |
| 16 | ORN | Battery Positive Voltage |
Chevrolet Silverado 1500 4.3 2004 Electrical Circuit Symbol Map




