Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2004MONTE CARLO V6-3.4L VIN EREPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTGLOBAL POSITIONING SYSTEMGLOBAL POSITIONING SYSTEM MODULESERVICE AND REPAIR
2004 Chevrolet Monte Carlo V6-3.4L VIN E
Global Positioning System Module: Service and Repair
2004 Chevrolet Monte Carlo V6-3.4L VIN ESECTION Service and Repair
COMMUNICATION INTERFACE MODULE REPLACEMENT
REMOVAL PROCEDURE
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.
1. Open the rear compartment.
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.
8. Remove the bolts (1) from the communication interface module.
9. Remove the communication interface module (2).
INSTALLATION PROCEDURE
1. Record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.
2. Position the communication interface module to the bracket (2).
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the communication interface module bolts (1).
Tighten
Tighten the bolts to 10 N.m (89 lb in).
4. Connect the GPS antenna cable to the module.
5. Connect the electrical connectors to the module.
6. Connect the cellular antenna cable to the module.
IMPORTANT: After replacing the communication interface module, you must reconfigure the OnStar(R) system. Failure to reconfigure the system will result in an additional customer visit for repair.
7. Reconfigure the OnStar(R) system. Refer to OnStar Reconfiguration.
8. Position the assembly to the studs.
9. Install the bracket nuts to the communication interface module.
Tighten
Tighten the nuts to 4 N.m (35 lb in).
10. Install the communication interface module cover.
11. Close the rear compartment.
REMOVAL PROCEDURE
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.
1. Open the rear compartment.
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.
8. Remove the bolts (1) from the communication interface module.
9. Remove the communication interface module (2).
INSTALLATION PROCEDURE
1. Record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.
2. Position the communication interface module to the bracket (2).
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the communication interface module bolts (1).
Tighten
Tighten the bolts to 10 N.m (89 lb in).
4. Connect the GPS antenna cable to the module.
5. Connect the electrical connectors to the module.
6. Connect the cellular antenna cable to the module.
IMPORTANT: After replacing the communication interface module, you must reconfigure the OnStar(R) system. Failure to reconfigure the system will result in an additional customer visit for repair.
7. Reconfigure the OnStar(R) system. Refer to OnStar Reconfiguration.
8. Position the assembly to the studs.
9. Install the bracket nuts to the communication interface module.
Tighten
Tighten the nuts to 4 N.m (35 lb in).
10. Install the communication interface module cover.
11. Close the rear compartment.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.