For 1990-2009 cars

#### Automatic Transmission (6L80E)

Connector Part Information |
--- | ---
Pin | Wire Colour | Wire Size | Function
1 | OG/YE | 0.75 | Battery Positive Voltage
2 | BK | 0.75 | Ground
3 | OG/BK | 0.5 | Park/Neutral Signal
4 | OG/YE | 0.5 | Battery Positive Voltage
5 | BK | 0.75 | Ground
6 | WH/BU | 0.5 | Stop Lamp Switch Signal
7 | -- | -- | Not Used
8 | -- | -- | Not Used
9 | D-BU | 0.5 | TCM Accessory Signal
10 | BN/BK | 0.5 | High Speed GMLAN Serial Data Bus+
11 | BN | 0.5 | High Speed GMLAN Serial Data Bus-
12 | PK | 0.5 | Ignition 1 Voltage
13 | BN | 0.5 | High Speed GMLAN Serial Data Bus-
14 | BN/BK | 0.5 | High Speed GMLAN Serial Data Bus+
15 | -- | -- | Not Used
16 | -- | -- | Not Used