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Home >> Cadillac >> 2005 >> STS 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (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

WARNING: This page is about a different variant/trim than selected.

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