LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Engine Controls - 3.9L - DTC P0442 To P2A01) >> DTC P1682 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The Throttle Actuator Control (TAC) System voltage supplies power to the TAC processor independent of the engine control module (ECM) processor. The ECM compares the reported voltage from the TAC processor to the ignition voltage supplied to the ECM processor. If the voltages are not within a specified range of each other the ECM will set this DTC.

scientia non olet · About LEMON Manuals