Impala V6-3.8L SC VIN 1 (2005)
Global Positioning System Module: Service and Repair
COMMUNICATION INTERFACE MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Open the rear compartment.
IMPORTANT: The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to each vehicle. These
numbers, the 10-digit station identification and the 11-digit electronic serial number, are used by the National Cellular Network and OnStar(R) to
identify the specific vehicle. Because these numbers are tied to the vehicle identification number of the vehicle, you must never exchange these parts
with those of another vehicle.
2. Remove the communication interface module cover.
3. Remove the bracket nuts from the communication interface module.
4. Adjust the assembly for access.
5. Disconnect the cellular antenna cable from the communication interface module.
6. Disconnect the electrical connectors from the module.
7. Disconnect the GPS antenna cable from the module.
