Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 468Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 468

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SERVICE MANUAL NUMBER 24
ECM FUNCTION The ECM supplies or 12 volts to power various sensors or switchesThis is done through resistances in the ECM which are so high in value that test light will