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Home >> Lexus >> 1997 >> SC 400 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Acoustic Control Induction System (ACIS) >> ACIS Circuit
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ACIS Circuit

CAUTION: If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.
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