Contents Wiring diagrams Section: Entertainment Systems All sections

Cellular Communication System: Wiring Hummer H2 I

Cellular Communication Connector End Views

Cellular Microphone - Terminal Identification Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BARE 514 Ground B GY 655 Cellular Microphone Signal

OnStar Button Assembly - Terminal Identification Connector Part Information 12047886 8-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A L-GN/BK 2515 Keypad Supply Voltage B D-GN/WH 2514 Keypad Signal C-D - - Not Used E OG/BK 2518 Keypad Ground F YE/BK 2516 Keypad Green LED Signal G BN/WH 2517 Keypad Red LED Signal H - - Not Used

Vehicle Communication Interface Module (VCIM) - Terminal Identification - C1 Connector Part Information 15383038 16-Way F 040II (WH) Pin Wire Color Circuit No. Function 1 - - Not Used 2 BN/WH 2517 Keypad Red LED Signal 3 YE/BK 2516 Keypad Green LED Signal 4 - - Not Used 5 OG/BK 2518 Keypad Ground 6 L-GN/BK 2515 Keypad Supply Voltage 7 BK/WH 1851 Ground 8 BK/WH 1851 Ground 9-10 - - Not Used 11 D-GN/WH 2514 Keypad Signal 12-14 - - Not Used 15 OG 3240 Battery Positive Voltage 16 OG 3240 Battery Positive Voltage

Vehicle Communication Interface Module (VCIM) - Terminal Identification - C2 Connector Part Information 15383039 12-Way F 040II (WH) Pin Wire Color Circuit No. Function 1 PK/BK 2062 Cellular Telephone Voice Signal 2 OG/BK 2061 Cellular Telephone Low Reference 3-4 - - Not Used 5 YE 1127 Trip Computer/Nav Class 2 Serial Data 6-7 - - Not Used 8 BARE 1792 Drain Wire 9 GY 655 Cellular Microphone Signal 10 BARE 514 Ground 11-12 - - Not Used