Information On Body Control Module (BCM) Grounds (07-08-47-004E)

Publication date: 2013-05-20
Reference number: 07-08-47-004E
Supersedes refnos: 07-08-47-004, 07-08-47-004A, 07-08-47-004B, 07-08-47-004C, 07-08-47-004D

INFORMATION ON BODY CONTROL MODULE (BCM) GROUNDS

TECHNICAL SERVICE BULLETIN

Reference Number(s): 07-08-47-004E, Date of Issue: May 20, 2013

Affected Model(s):

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

Supercedes:

This bulletin is being revised to update the model years. Please discard Corporate Bulletin Number 07-08-47-004D (Section 08 - Body and Accessories).

Superceded Bulletin(s): 07-08-47-004D, Date of Issue: August 17, 2011

SERVICE INFORMATION

The purpose of this bulletin is to inform dealers of an issue that could cause internal module damage to the Body Control Module (BCM).

The BCM may be damaged when the module is supplied with battery power and the ground path is removed. You must remove the negative battery cable first before removing a BCM ground.

Issue 1

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)

Issue 2

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 cable if you determine that it is a BCM ground path.

As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur. Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent condition in one or more of the following systems:

Interior lighting will remain on or will not work
Exterior lighting will remain on or will not work
Remote keyless entry
Door locks
Power windows and mirrors
Remote vehicle start
Remote trunk release