Purpose.

This document describes cable selection, physical wire harness construction, and topology requirements for implementing serial data communication busses in GM vehicles. See the Classification section for the list of specific busses covered.

Applicability.

This standard consolidates wire harness requirements for serial data busses used in GM vehicles into a single document. All serial data bus wiring in GM vehicles shall meet the electrical and mechanical requirements identified in this document. Complete requirements for GM vehicle wiring subsystems, including appearance, ambient environment, dependability, reliability, and serviceability, are given in the GM Power and Signal Distribution Subsystem Technical Specification (SSTS), CG1763 template (the supplier shall work with the GM Design Responsible Engineer to comprehend this requirement). The requirements in this document do not replace any requirements in the SSTS, but are additional requirements specific to serial data bus wiring in GM vehicles