| Table 1: | Inside Rear View Mirror Connector (Automatic Day/Night Mirror) | 
| Table 2: | Inside Rear View Mirror Connector (Automatic Day/Night Mirror) w/Onstar | 
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
1  | BRN  | 341  | Ignition 3 Voltage  | ||||
2  | BLK  | 1850  | Ground  | ||||
3  | LT GRN  | 1324  | Backup Lamps Supply Voltage  | ||||
4  | GRA  | 1690  | Automatic Day/Night Mirror Signal  | ||||
5  | PNK  | 1691  | Automatic Day/Night Mirror Low Reference  | ||||
6-7  | --  | --  | Not Used  | ||||
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
1-4  | --  | --  | Not Used  | ||||
5  | GRY  | 1690  | Automatic Day/Night Mirror Signal  | ||||
6-7  | --  | --  | Not Used  | ||||
8  | BLK  | 1850  | Ground  | ||||
9  | LT GRN  | 1324  | Backup Lamp Supply Voltage  | ||||
10  | --  | --  | Not Used  | ||||
11  | DK GRN/WHT  | 974  | Keypad Signal  | ||||
12  | LT GRN/BLK  | 975  | Keypad Supply Voltage  | ||||
13  | BRN  | 341  | Ignition 3 Voltage  | ||||
14  | YEL/BLK  | 977  | Keypad Green LED Signal  | ||||
15  | BRN/WHT  | 979  | Keypad Red LED Signal  | ||||
16  | PNK  | 1691  | Automatic Day/Night Mirror Low Reference  | ||||