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Home >> Chevrolet >> 2006 >> HHR LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L - DTC P1682 To P2176 >> DTC P1682 >> Circuit Description

Circuit Description

The throttle actuator control (TAC) system uses an ignition voltage supply separate from the engine control module (ECM) supply. If the ECM detects a voltage difference between the two circuits, this DTC will set.