GMC/CHEVROLET: A COMMUNICATION FAULT, REGARDING SERVICE STABILITY TRACTION AND ABS REAR WHEEL SPEED DTC OR CHASSIS EXPANSION BUS, WHICH IS RELATED TO AN INTERNAL WIRE BREAK INSIDE WIRE HARNESS INSULATION TO X411 CONNECTOR. MODELS 2010-2012 CHEVROLET EQUINOX & GMC TERRAIN. *PE UPDATED ON 5/9/2013. *KB UPDATED 7/10/2013. *KB UPDATED 2/1/16. *PE