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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Engine Controls - Self-Diagnostics - 3.5L) >> Inspection/Maintenance Procedures >> Inspection/Maintenance System Check >> Circuit Description
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Circuit Description

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Several states require that a vehicle pass On-Board Diagnostic (OBD) system tests and the Inspection/Maintenance (I/M) emission inspection in order to renew license plates. This is accomplished by viewing the I/M system status display on a scan tool. Using a scan tool, the I/M system status can observed in order to verify that the vehicle meets the criteria that complies with local area requirements.