2005 Pontiac Aztek Base, AWDFACTORY OEM SERVICE PROCEDURE

Removal procedure

WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
    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® 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. Fig 1: Communication Interface Module & Cover
    GM769971Courtesy of GENERAL MOTORS CORP.
  3. Remove the bracket nuts from the communication interface module.
    4. Fig 2: Communication Interface Module - Bracket Nuts
    GM769963Courtesy of GENERAL MOTORS CORP.
  4. Adjust the assembly for access.
    5. Fig 3: Communication Interface Module Connectors
    GM813766Courtesy of GENERAL MOTORS CORP.
  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).
    10. Fig 4: Communication Interface Module & Bolts
    GM1364564Courtesy of GENERAL MOTORS CORP.
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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.

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