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Home >> Suzuki >> 2007 >> Reno Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Diagnostic Introduction >> Diagnostic Information & Procedure >> On-Board Diagnostic (OBD II) System Check >> Circuit Description

Circuit Description

The On-Board Diagnostic (OBD II) System Check is the starting point for any driveability complaint diagnosis. Before using this procedure, perform a careful visual/physical check of the Engine Control Module (ECM) and the engine grounds for cleanliness and tightness.

The OBD II system check is an organized approach to identifying a problem created by an electronic engine control system malfunction.

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