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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Engine Control System & Fuel System - 3.8L - DTC P0385 To DTC P2108) >> DTC P0403, P0404, P0405, P0406, or P042E >> Conditions for Setting the DTC >> P0403

Conditions for Setting the DTC: P0403

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The PCM detects an electrical malfunction in the EGR solenoid high control circuit or the EGR solenoid low control circuit for more than 20 seconds.

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