Body Control Module

1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION Body Control Module
WARNING: This page is about a different car, the 1999 Pontiac Grand Am and 1999 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect negative battery cable. Remove passenger side hush panel. Disconnect electrical connectors and remove BCM from bracket. See Fig 1 . To install, reverse removal procedure. Program new module. See BCM PROGRAMMING/RPO CONFIGURATIONΒ  under PROGRAMMING.

Fig 1: Removing Body Control Module
G99D08620Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.