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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Engine Controls Diagnosis (DTC P0138 To P0452) - 3.8L) >> Diagnosis >> DTC P0403 >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The engine is cranking or running.

The Ignition 1 Signal parameter is between 11-18 volts.

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