Diagnostic Tests: Notes

NOTE: For Body Control Module (BCM) DTCs, retrieved using ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM, see BODY CONTROL MODULE DTC INDEX table under ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM. For all other DTCs, see DIAGNOSTIC TROUBLE CODE DEFINITIONS under SELF-DIAGNOSTIC SYSTEM.

NOTE: Diagnostic tests are written specifically for use with GM Tech 2 scan tool. Generic scan tool can be used but may have limited functions. This article only covers the portion of those systems which relates to Body Control Module (BCM) system diagnosis.