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Home >> Cadillac >> 2005 >> STS 4.6 A, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.6L (LH2) - Introduction >> Description and Operation >> Throttle Actuator Control (TAC) System Description >> Engine Control Module
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Engine Control Module

The engine control module (ECM) determines the driver's intent and then calculates the appropriate throttle response.

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