Section 21 (HVAC System - Automatic): Self-Diagnostics: Notes
WARNING: This page is about a different car, the 2001 Pontiac Bonneville and 2000 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To insure fault conditions have been repaired correctly, perform A/C system performance test before and after performing any self-diagnostics procedure or DTC tests. See A/C SYSTEM PERFORMANCE
under TROUBLE SHOOTING.