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Home >> Pontiac >> 2008 >> Grand Prix Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.8L - DTC P2119 To DTC P2444 >> DTC P2119 >> Circuit/System Description

Circuit/System Description

The throttle actuator control (TAC) monitors the throttle position. The throttle blade is spring loaded in both directions, and at rest is slightly open. When the throttle blade is not driven in either direction, it returns to this position. If the TAC module determines that the throttle blade has not returned to the correct de-energized position, the TAC module sends a message to the powertrain control module (PCM) across serial data, and DTC P2110 sets.