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Microprocessor Card

  Last Updated 19 April 2001

The uppermost circuit board contains all the digital microprocessor circuitry, including the microprocessor itself. It has ACDelco part number 61C315 marked on it. Photos of  both top and bottom sides are shown below. I have overlaid the chip idents and part numbers on the top side diagram. Click on the top image for a more detailed image of the components (330 KB JPEG).

ecu_up1.jpg (65709 bytes)

ecu_up2.jpg (66689 bytes)