Inspection/Maintenance Air System Set Procedure: Description
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2001 Pontiac Grand Prix, 2001 Pontiac Bonneville, 2001 Chevrolet Monte Carlo, 2001 Chevrolet Impala, and 2001 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of this test is to satisfy enable criteria necessary to execute I/M readiness diagnostics for Secondary Air Injection (AIR) system. Test may be used to set I/M SYSTEM STATUS to YES.