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Home >> Pontiac >> 2004 >> Grand Prix GTP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Introduction) - 3.8L >> Description and Operation >> Throttle Actuator Control (TAC) System Description >> Powertrain Control Module

Powertrain Control Module

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

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