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Home >> Pontiac >> 1982 >> Phoenix Base, 4D Hatchback, 2.5L Eng VIN R, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Computer Command Control >> Operation >> Electronic Control Module (ECM) >> Input/Output Devices
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Input/Output Devices

These integral devices of ECM convert electrical signals received by data sensors and switches to digital signals for use by CPU.