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Home >> Isuzu >> 2003 >> Rodeo LS, 3.2 W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.2L >> Self-Diagnostic System >> On-Board Diagnostic II System Check >> Circuit Description

Circuit Description

The On Board Diagnostic System Check is the starting point for any driveability complaint diagnosis. Before using this procedure, perform a careful visual/physical check of the ECM and engine grounds for cleanliness and tightness. The On Board Diagnostic System Check is an organized approach to identifying a problem created by an electronic engine control system malfunction.

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