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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (Engine Control System - 3.8L (DTC P0418 To DTC P1115)) >> Diagnosis >> DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 >> Conditions for Running the DTC >> DTC P0601 >> DTC P0604

DTC P0604

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The ignition switch is in Run or Crank.