Subject: ABS Light On, DTCs C0265, C0201, U1041 Set and/or Loss of Communication with brake module (Reground EBCM Ground)
Models: 2004-2007 Buick Rainier
2002-2006 Cadillac Escalade, Escalade EXT
2003-2006 Cadillac Escalade ESV
1999-2007 Chevrolet Silverado Classic
2000-2006 Chevrolet Suburban, Tahoe
2002-2006 Chevrolet Avalanche
2002-2007 Chevrolet TrailBlazer, TrailBlazer EXT
2003-2006 Chevolet SSR
1999-2007 GMC Sierra Classic
2000-2006 GMC Yukon, Yukon Denali, Yukon XL
2002-2007 GMC Envoy, Envoy XL, Sierra Denali Classic
2004-2005 GMC Envoy XUV
2002-2004 Oldsmobile Bravada
Condition Some customers might remark that the ABS gentle is on. Upon additional inspection, DTCs C0265 and C0201 may be set in the brake module. It is also attainable for DTC U1041 to set in different modules. There can also be a loss of communication with the brake module.
Cause A poor connection at the EBCM ground is causing pointless replacements of brake modules.
Correction DO NOT REPLACE THE brake module Carry out the next steps to enhance the connection of the EBCM Floor:
1. Remove the EBCM Ground. The EBCM Ground is positioned on the body beneath the driving force’s facet door. If a number of grounds are discovered on this location, the EBCM ground will be recognized as the heavy (12-gauge) wire.
2. Clear the world, front and back, utilizing a Whiz Wheel.
3. Set up the bottom, then the washer and then the bolt to the frame. Necessary: It is important to use the bolts, washers and nuts specified in this bulletin. These parts have been identified because of their conductive finish.
4. Install a washer and nut to the back facet of the frame. Tighten Tighten the nut to 9 N·m (seventy nine lb in).
5. Cover the front and back aspect of the restore area using Rubberized Undercoating. An additional test may be made to ensure an excellent connection for the Battery Cable to Body ground. It’s potential for this ground to trigger similar symptoms with the ABS as described above.
