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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1604 (CELLULAR COMMUNICATION SYSTEM)COMPONENT LOCATORCELLULAR COMMUNICATION CONNECTOR END VIEWS
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Cellular Communication Connector End Views

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Cellular Communication Connector End Views
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle Interface Unit (VIU) Control Module - C1 Component Views

GM258912Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110113
  • 32-Way F Micro-Pack 100 Series (RED)
Pin Wire Color Circuit No. Function
A1 - - Not Used
A2 ORN 1044 Radio Class 2 Serial Data
A3 DK GRN 835 Entertainment and Comfort Serial Data
A4-A5 - - Not Used
A6 BLK/WHT 372 Remote Radio Audio Output (-)
A7 DK GRN/
WHT		 368 Remote Playback Device Right Audio Signal
A8 BRN/WHT 367 Remote Playback Device Left Audio Signal
A9 BARE 814 Drain Wire
A10 LT BLU 1235 Audio Low Reference
A11 BRN/WHT 2506 Audio Return Signal
A12 DK GRN/
WHT		 2507 Audio Transmit Signal
A13 BARE 1792 Drain Wire
A14 GRY/BLK 2508 Microphone Signal
A15 BARE 1782 Drain Wire
A16 ORN 2540 Battery Positive Voltage
B1-B8 - - Not Used
B9 GRY 655 Cellular Microphone Signal
B10 BARE 1705 Drain Wire
B11 TAN/BLK 2510 OnStar Serial Data Return
B12 DK BLU/
WHT		 2511 OnStar Serial Data (-)
B13 LT BLU/
BLK		 2512 OnStar Serial Data (+)
B14 GRY 2520 Transceiver Low Reference
B15 PPL/WHT 2513 Ignition ON Signal
B16 - - Not Used
Vehicle Interface Unit (VIU) Control Module - C2 Component Views

GM73222Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110115
  • 32-Way F Micro-Pack 100 Series (BLU)
Pin Wire Color Circuit No. Function
E1 BLK 1850 Ground
E2-E3 - - Not Used
E4 DK GRN/
WHT		 2514 Keypad Signal
E5 YEL/BLK 2516 Keypad Green LED Signal
E6 LT GRN/
BLK		 2515 Keypad Supply Voltage
E7-E15 - - Not Used
E16 ORN 2240 Battery Positive Voltage
F1 BLK 1850 Ground
F2-F3 - - Not Used
F4 ORN/BLK 2518 Keypad Low Reference
F5 - - Not Used
F6 PNK 739 Ignition 1 Voltage & UE1
F7-F8 - - Not Used
F9 BRN/WHT 2517 Keypad Red LED Signal
F10 - - Not Used
F11 BLK 707 RAP Relay Coil Supply Voltage & UE1
F12-F15 - - Not Used
F16 ORN 2240 Battery Positive Voltage
Vehicle Communication Unit (VCU) Component Views

GM585586Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 205207-1
  • 25 - Way F (BLK)
Pin Wire Color Circuit No. Function
1 DK GRN/
WHT		 2507 Audio Transmit Signal
2 - - Not Used
3 BLK 2520 Transceiver Low Reference
4 ORN 2540 Battery Positive Voltage
5 PPL/WHT 2513 Ignition On Signal
6 BRN/WHT 2506 Audio Return Signal
7-10 - - Not Used
11 LT BLU/
BLK		 2512 OnStar Serial Data (+)
12 DK BLU/
WHT		 2511 OnStar Serial Data (-)
13 - - Not Used
14 BLK 1792 Drain Wire
15 GRY/BLK 2508 Microphone Signal
16-17 - - Not Used
18 TAN/BLK 2510 Onstar Serial Data Return
19-23 - - Not Used
24 BLK/WHT 1235 Audio Low Reference
25 - - Not Used
OnStar Button Assembly Component Views

GM62439Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12047886
  • 8-Way F Metri-Pack 150 Series (BLK)
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
Cellular Telephone Microphone Component Views

GM82383Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12047662
  • 2-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BARE 1705 Drain Wire
B GRY 655 Cellular Microphone Signal
RENDER: 1.0x

NO RELATED

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