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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1405 (Cellular Communication System) >> Diagnostic Information and Procedures >> OnStar Call Center Remote Function Requests Inoperative >> Diagnostic Aids

Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The customer concern may have been due to a lack of cellular service in a given area or a failure in the National Cellular Network infrastructure that has since been corrected.

OnStar Call Center Remote Function Requests Inoperative

Step Action Yes No
Schematic Reference: OnStar Schematics 
Connector End View Reference: Cellular Communication Connector End Views 
1 Did you perform the Cellular Communication Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Cellular Communication 
2 Attempt to honk the horn, operate the lights and lock or unlock the doors on the vehicle.
Does the applicable system operate properly?		 Go to Step 3  Go to
3
IMPORTANT: It is necessary to inform the OnStar® Call Center advisor that this call is for vehicle diagnostic purposes.
  1. Contact the OnStar® Call Center by pressing the blue OnStar® button.
  2. Ask the OnStar® advisor to perform a remote function (door lock/unlock, light flash, or horn honk).
Was the attempt successful?		 Go to Diagnostic Aids Use the scan tool to access the STID and ESN and contact the General Motors Technical Assistance Center
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