Diagnostic Tests: Notes

NOTE: Before performing following tests, perform preliminary inspection. See PRELIMINARY INSPECTION under TROUBLE SHOOTING.

NOTE: Diagnostic trouble code tests are written specifically for use with GM Tech 1 or 2 scan tools. Generic scan tool can be used, but may have limited functions.

NOTE: Connector Test Adapter Kit (J 35616-A) must be used whenever a diagnostic procedure requires checking or probing a terminal to prevent damage to terminal. To locate and identify connectors and terminals, see WIRING DIAGRAMS .