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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - DTC P0442 To DTC P2101 >> DTC P1682 >> Circuit Description

Circuit Description

The Throttle Actuator Control (TAC) System uses an ignition voltage supply separate from the powertrain control module (PCM) supply. If the PCM detects a voltage difference between the 2 circuits, this diagnostic trouble code (DTC) will set.

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