Throttle Actuator Control (TAC) Module
The TAC module receives inputs from Powertrain Control Module (PCM) through TAC serial data circuits and through driver-controlled inputs. By monitoring cruise control functional switches, TCC brake switch (A/T), cruise control brake switch (M/T), clutch switch, brakelight switch and throttle pedal position, TAC module commands throttle actuator motor to respond accordingly to maintain set cruising speed.