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Home >> Pontiac >> 2003 >> Aztek FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 348 (Cellular Communication System) >> Repair Instructions >> Communication Interface Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. If you are replacing the module, record the 10-digit STID number and the 11-digit ESN number from the labels on the new module.
  2. Align the connector side of the module to the large cutout on the plastic bracket. Insert the module into the plastic bracket. Make sure the small GPS connector is inserted into the small round hole in the plastic bracket.
    Fig 1: Installing Module Into Plastic Bracket
    G01755161Courtesy of GENERAL MOTORS CORP.
  3. Spread the large tang side of the plastic bracket over the edge of the module. The bottom, undercut edge of the plastic bracket will snap over the bottom of the module when fully seated.
    Fig 2: Engaging Module Into Plastic Bracket
    G01755162Courtesy of GENERAL MOTORS CORP.
  4. The connectors on the module must be outboard. Slide the plastic bracket assembly outboard, under the metal bracket.
  5. Engage the outboard plastic tabs to the outboard edge of the metal bracket.
  6. Squeeze the plastic bracket assembly upward until the large, plastic snap-fingers engage on the inboard edge of the metal bracket.
    NOTE: Before you install the antenna cable connector of the global positioning system (GPS) to the vehicle communication interface module (VCM), align the connector properly in order to avoid damaging the connector.
  7. Gently connect the GPS antenna cable to the module by pushing inward on the circular metal sleeve.
    8. Fig 3: Identifying Communication Interface Module Connections
    G01755163Courtesy of GENERAL MOTORS CORP.
  8. Connect the 2 lower connectors to the module.
  9. Connect the cellular antenna cable to the module by pushing inward on the square plastic housing.

    Important:  Pressing and holding the white dot button on the keypad will not reset this version of the OnStar system. This action will cause a DTC to set.

  10. If replacing the VCIM, perform the following:
    1. 10.1. Install the scan tool. Use the special functions menu in order to perform the OnStar setup procedure for this vehicle.
    2. 10.2. Move the vehicle to an open area that is away from tall buildings, and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
    3. 10.3. Use the ID Information, Module 2 screen of the scan tool in order to access the new station ID and electronic serial number from the new VCIM.
    4. 10.4. Press the blue OnStar button twice to connect to OnStar. Tell the advisor that this vehicle has received a new VCIM. Ask the advisor to add the new STID and ESN to the customer's account.
    5. 10.5. Follow any additional instructions from the OnStar advisor.
  11. Position the assembly to the studs.
    NOTE: Refer to FASTENER NOTICE .
  12. Install the communication interface module nuts. Tighten the nuts to 4 N.m (35 lb in).
    Fig 4: Identifying Communication Interface Module Nuts
    G01755164Courtesy of GENERAL MOTORS CORP.
  13. Install the plastic OnStar® cover.
    14. Fig 5: Identifying OnStar® Cover
    G01755165Courtesy of GENERAL MOTORS CORP.
  14. Close the rear compartment.
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