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Home >> Oldsmobile >> 1997 >> Silhouette Base, Van Passenger Extended >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Control System - Theory & Operation >> Computerized Engine Controls >> Powertrain Control Module (Pcm) & Vehicle Control Module (VCM) >> Power Supply
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Power Supply

Power for PCM/VCM reference output signals (5 volts) and control devices (12 volts) is received from the battery through ignition circuit when ignition switch is in ON position. Keep-alive memory power is received directly from the battery.

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