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Home >> Buick >> 2004 >> Century Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls 3.1L (Troubleshooting & Diagnosis) >> Engine Controls >> Inspection/Maintenance (I/M) Complete System Set Procedure >> Description

Inspection/Maintenance (I/M) Complete System Set Procedure: Description

The purpose of the inspection/maintenance (I/M) complete system set procedure is to satisfy the enable criteria necessary to execute all of the I/M readiness diagnostics, and complete the trips for those particular diagnostics. When all diagnostic tests are completed, the I/M System Status indicators are set to YES. Perform this test when more than one or all of the I/M System Status indicators are set to NO.