2007 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Communication Interface Module Replacement

Fig 1: Identifying Communication Interface Module
GM1699922Courtesy of GENERAL MOTORS CORP.
Communication Interface Module Replacement

Callout Component Name
Fastener Tightening Specifications:  Refer to Fastener Tightening Specifications .
Preliminary Procedure: 
Remove the instrument panel center trim panel. Refer to Instrument Panel Center Trim Panel Replacement (Left Hand Drive) or Instrument Panel Center Trim Panel Replacement (Right Hand Drive) .
1 Communication Interface Module Guide Pin
Tip:  Turn counterclockwise to remove from the module in order to release the module from the bracket.
2 Communication Interface Module
Tip: 
  1. Disconnect the electrical connectors.
  2. Tip the module towards the opening in the instrument panel to remove.
  3. Reprogram the communications interface module if replacing the unit. Refer to Control Module References .
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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.