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Home >> Mercury >> 1997 >> Tracer L4-122 2.0L SOHC >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Description and Operation
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Engine Control Module: Description and Operation







OPERATION
The Powertrain Control Module (PCM) uses data it receives from various sensors, switches and relays to generate output signals to control various relays, solenoids and other components. The PCM will compensate for the age of the various sensors and for changes in altitude.
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