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

Cellular Communication Component Views

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Cellular Communication Component 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.
Fig 1: OnStar® Subsystem Components (Utility)
GM623162Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Cellular Antenna
2 Cellular Telephone Microphone
3 Global Positioning System (GPS)
4 Junction Block-Body
5 Vehicle Communication Unit
6 OnStar® Button Assembly
7 Vehicle Interface Unit
Fig 2: Behind the Upper Right Side of the I/P Components
GM623205Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Vehicle Interface Unit (VIU)
2 VIU Connector C-2 (Blue)
3 VIU Connector C-1 (Red)
4 I/P Panel-RH
Fig 3: Onstar Vehicle Communication Unit (VCU) Component Views
GM623169Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 IP Support Bracket
2 Vehicle Communication Unit (VCU)
3 Vehicle Communication Unit (VCU) Connector
4 C248
5 Vehicle Communication Unit (VCU) Harness
Fig 4: Roof Harness (w/OnStar®) Component Views
GM623207Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Global Positioning System (GPS) Harness
2 GPS Connector
3 GPS Antenna
Fig 5: Overhead Console - OnStar® Components
GM623185Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Inline Connector C211
2 Overhead Reading Lamps
3 OnStar® Microphone
Fig 6: Center of the I/P - OnStar® Components
GM623182Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 OnStar® Button Assembly Connector
2 OnStar® Button Assembly
Fig 7: Behind the Center of the I/P - Radio Connections Component Views
GM623166Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Radio
2 I/P Connector to Radio Connector C-3
3 Jumper Connector, With Remote CD
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