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Home >> Pontiac >> 2005 >> Grand Prix GTP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.8L - DTC P1112 To DTC P2431 >> DTC P2101: Control Module Throttle Actuator Position Performance >> Circuit Description
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Circuit Description

The commanded throttle position (TP), based on accelerator pedal position (APP), is compared to the actual throttle position. The TP values should be within a calibrated range of each other. The throttle actuator control (TAC) module monitors the commanded and actual throttle position. If the TAC module detects that the commanded and actual throttle positions are not within a calibrated range of each other, a message is sent to the powertrain control module (PCM) across serial data and DTC P2101 is set.