2005 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Installation Procedure

  1. Install the BCM (1).
    Fig 1: Body Control Module & Electrical Connectors
    GM614333Courtesy of GENERAL MOTORS CORP.
  2. Connect the BCM electrical connectors (2, 3, 4).
  3. Install the left instrument panel insulator. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages and Console.
  4. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  5. Perform the new BCM setup. Refer to Control Module ReferencesΒ .
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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