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Home >> Cadillac >> 1984 >> Seville 4.1 8 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> DFI Theory/Operation >> Operation >> Electronic Control Module (ECM) >> Notes
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Electronic Control Module (ECM): Notes

The ECM monitors and controls all DFI system functions. The ECM consists of input/output devices, Central Processing Unit (CPU), power supply and memories. A brief description and operation of each component is as follows: