Service Bulletin

File in Section: -

Bulletin No.: PI1077

Date: October, 2013

PRELIMINARY INFORMATION

Subject: Information for Control Module Part Service Name Using Mixed References – FuelPump Control Module vs Chassis Control Module

Models: 2014 Buick Enclave2014 Cadillac CTS Coupe, Wagon, CTS-V, Escalade2014 Chevrolet Express, Impala Limited, Silverado 2500-3500 HD, Suburban, Tahoe,Traverse2014 GMC Acadia, Savana, Sierra 2500-3500 HD, Yukon, Yukon XL

InformationBeginning in the 2014 model year, most vehicles completed the transition to the component part service nameChassis Control Module in all publications and service tools, consolidating the former component part servicenames of: Fuel Pump Control Module, Fuel Pump Flow Control Module, Fuel System Control Module and FuelPump/Trailer Brake Control Module.During this transition a limited number of vehicles will continue to reference the original component part servicenames in Service Information (SI) diagnostics and schematics while the Electronic Parts Catalog (EPC) and GDS 2may refer to the component part service names as Chassis Control Module. In order to help clarify the use of thesemixed references, the part service name Chassis Control Module, along with the original component part servicename which will be preceded by AKA:, will be used in the Service Programming System (SPS) and in ServiceInformation routing tables such as the Control Module References and Master Component Lists.

Example of Chassis Control Module Identified by Transitional and Previous Control Module Names in ControlModule References in SI

3630659

Notice: Transitional Component Part Service Name1. Chassis Control Module Scan Tool Information

Notice: Original Component Part Service Name2. AKA: Fuel Pump Control Module