| Table 1: | Cellular Microphone | 
| Table 2: | OnStar® Button Assembly | 
| Table 3: | Vehicle Communication Interface Module (VCIM) - C1 | 
| Table 4: | Vehicle Communication Interface Module (VCIM) - C2 | 
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
A  | BARE  | 1705  | Drain Wire  | ||||
B  | GRY  | 655  | Cellular Telephone Microphone Signal  | ||||
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
A  | LT GRN/BLK  | 2515  | Keypad Supply Voltage  | ||||
B  | DK GRN/ WHT  | 2514  | Keypad Signal  | ||||
C-D  | --  | --  | Not Used  | ||||
E  | ORN/BLK  | 2518  | Keypad Low Reference  | ||||
F  | YEL/BLK  | 2516  | Keypad Green LED Signal  | ||||
G  | BRN/WHT  | 2517  | Keypad Red LED Signal  | ||||
H  | --  | --  | Not Used  | ||||
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
1  | --  | --  | Not Used  | ||||
2  | BRN/WHT  | 2517  | Keypad Red LED Signal  | ||||
3  | YEL/BLK  | 2516  | Keypad Green LED Signal  | ||||
4  | --  | --  | Not Used  | ||||
5  | ORN  | 2518  | Keypad Ground  | ||||
6  | LT GRN/BLK  | 2515  | Keypad Supply Voltage  | ||||
7  | BLK/WHT  | 1851  | Ground  | ||||
8-10  | --  | --  | Not Used  | ||||
11  | DK GRN/WHT  | 2514  | Keypad Signal  | ||||
12-14  | --  | --  | Not Used  | ||||
15  | ORN  | 3240  | Battery Positive Voltage  | ||||
16  | --  | --  | Not Used  | ||||
 
 | |||||||
|---|---|---|---|---|---|---|---|
Connector Part Information  | 
 
  | ||||||
Pin  | Wire Color  | Circuit No.  | Function  | ||||
1  | BRN/WHT  | 9367  | Remote Radio Left Audio Signal  | ||||
2  | BLK/WHT  | 9372  | Remote Radio Audio Output (-)  | ||||
3-5  | --  | --  | Not Used  | ||||
6  | GRY  | 2289  | Class 2 Serial Data  | ||||
7  | --  | --  | Not Used  | ||||
8  | BARE  | 814  | Drain Wire  | ||||
9  | GRY  | 655  | Cellular Microphone Signal  | ||||
10  | BARE  | 1705  | Drain Wire  | ||||
11-12  | --  | --  | Not Used  | ||||