2004 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Communication Interface Module Replacement

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Communication Interface Module
GM1993180Courtesy of GENERAL MOTORS COMPANY
Communication Interface Module Replacement

Callout Component Name
Preliminary Procedure 
Remove the instrument panel compartment. Refer to Instrument Panel Compartment Replacement . Open Instrument panel compartment fully beyond it's stop bumpers.
1 Communication Interface Module Bolt (Qty: 3)
CAUTION:

Refer to Fastener Caution .


Tighten 
10 N.m (89 lb in)
2 Communication Interface Module

Procedure

  1. Disconnect the electrical connections.
  2. If replacing the communication interface module be sure to transfer Bluetooth antenna, if equipped.
  3. For programming and set up procedures, refer to Control Module References .
Factory Service Tools

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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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