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Home >> Buick >> 2009 >> Allure Super >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Control System & Fuel System - 3.8L - Introduction) >> Description and Operation >> Throttle Actuator Control (TAC) System Description >> Powertrain Control Module

Powertrain Control Module

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The powertrain control module (PCM) determines the drivers intent and then calculates the appropriate throttle response. This information is sent to the throttle actuator control (TAC) module through a dedicated serial data line.

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