Diagnostic Instructions
Circuit/System Description
The CIM is capable of interpreting voice commands recieved over the cellular microphone circuits. Speech recognition allows the user to speak to one computer in the vehicle, and one reached over the cellular communication network. The module attempts to
understand the users command, and responds by speaking back, or by taking the appropriate action, e.g. dialing the phone.
Reference Information
Schematic Reference
OnStar Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
OnStar Description and Operation
Electrical Information Reference
Circuit/System Verification
Important:
| • | It is necessary to have the vehicle in an open outside area where a cellular call can be successfully placed and GPS data can be received from satellites. |
| • | The vehicle should be located in a quiet area. |
- Ignition ON, press OnStar® Call button. Verify that your voice is heard clearly by the OnStar® Call Center.
- Press the OnStar® Call answer button. Attempt to operate the OnStar® system using multiple different voice commands. Verify the system responds appropriately to all voice commands.
| ⇒ | If the OnStar® system does not respond to any voice commands, replace the CIM. |
- If the system is operational, but does not respond appropriately to certain commands refer to
OnStar Description and Operation for tips on proper pronunciation.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for VCIM replacement, setup, and programming
