07-08-47-004E Information on Body Control Module (BCM) Grounds - (May 20 2013)
|Subject:||Information on Body Control Module (BCM) Grounds|
|Models:||2006-2011 Buick Lucerne|
|2008-2014 Buick Enclave|
|2006-2011 Cadillac DTS|
|2007-2009 Cadillac SRX|
|2007-2014 Cadillac Escalade Models|
|2008-2014 Cadillac CTS|
|2006-2008 Chevrolet Monte Carlo|
|2006-2013 Chevrolet Impala|
|2007-2009 Chevrolet Equinox|
|2007-2013 Chevrolet Avalanche, Silverado|
|2007-2014 Chevrolet Suburban, Tahoe|
|2008-2014 Chevrolet Express, Traverse|
|2007-2013 GMC Sierra|
|2007-2014 GMC Acadia, Yukon Models|
|2008-2014 GMC Savana|
|2007-2009 Pontiac Torrent|
|2007-2010 Saturn OUTLOOK|
|2008-2010 Saturn VUE|
|2008-2010 HUMMER H2|
This bulletin is being revised to update the model years. Please discard CorporateBulletin Number 07-08-47-004D (Section 08 – Body and Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internalmodule damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the groundpath is removed. You must remove the negative battery cable first before removinga BCM ground.
Below is a list of vehicles and the components that the BCM ground path passes through.The negative battery cable must be removed when removing the components noted below.2008-2010 HUMMER H2 (Instrument panel electrical center)2008-2010 Saturn VUE (I/P splice pack)
It is important to note when removing a ring terminal ground, splice pack connector,or inline harness connector for all the vehicles listed in the model section above,that it doesn't include a BCM ground path. You must remove the negative battery cableif you determine that it is a BCM ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCMwill occur. Other systems controlled by the BCM will also be affected, such as aninoperative or intermittent condition in one or more of the following systems:Interior lighting will remain on or will not workExterior lighting will remain on or will not workRemote keyless entryDoor locksPower windows and mirrorsRemote vehicle startRemote trunk release
GM bulletins are intended for use by professional technicians,NOT a "do-it-yourselfer". They are written to inform thesetechnicians of conditions that may occur on some vehicles, or toprovide information that could assist in the proper service of avehicle. Properly trained technicians have the equipment,tools, safety instructions, and know-how to do a job properly andsafely. If a condition is described, DO NOT assume that thebulletin applies to your vehicle, or that your vehicle will havethat condition. See your GM dealer for information on whetheryour vehicle may benefit from the information.
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