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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls - 2.6L & 3.2L - Troubleshooting & Diagnosis) >> Troubleshooting >> Inspection/Maintenance (I/M) System Check >> Description

Inspection/Maintenance (I/M) System Check: Description

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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 technician can observe the I/M System Status in order to verify that the vehicle meets the criteria that comply with the local area requirements.

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