Communication Interface Module Replacement

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Communication Interface Module Replacement
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Communication Interface Module
GM1719991Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Remove the left instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side .
1 Communication Interface Module Bolt
CAUTION: Refer to Fastener Caution .

Tighten:  10 N.m (89 lb in)

2 Communication Interface Module

Procedure

  1. Pull down to release the module from the bracket.
  2. Disconnect the electrical connectors, the GPS antenna, and the cellular coax cable.
  3. If replacing the module, record the 10-digit STID number, and the 11-digit ESN number from the labels on the new module.
  4. Reconfigure the OnStar® system. Refer to Control Module References .
  5. When replacing the communication interface module be sure to transfer the Bluetooth antenna, if equipped.

Tip:  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.
RENDER: 1.0x

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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.