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Home >> Cadillac >> 2009 >> CTS Base, 3.6 7, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.6L - DTC P0455 To DTC P2190 >> DTC P2176 >> Circuit/System Description

Circuit/System Description

The engine control module (ECM) controls the throttle valve by applying a varying voltage to the throttle actuator control (TAC) motor. The ECM monitors the actual throttle valve position using throttle position (TP) sensor 1 and 2.

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