Self-Diagnostic System: Notes

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Diagnostic trouble code tests are written specifically for use with Tech 2 scan tool. Generic scan tool can be used but may have limited functions. This article only covers portion of those systems which relates to charging system diagnosis. For further information, see SELF-DIAGNOSTICS -- 3.1L or SELF-DIAGNOSTICS - 3.8L .