Self-Diagnostic System: Notes
NOTE:
Begin power window diagnosis with door systems diagnostic system check. Door systems diagnostic system check will provide following information:
- Identification of control module(s) which command system.
- Ability of control module(s) to communicate through serial data circuit.
- Identification of any stored DTCs and their current status.
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.