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Home >> Oldsmobile >> 2003 >> Silhouette GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0403: EGR Valve Control Circuit >> Test Description
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Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 6 -  This step tests if voltage is constantly being applied to the EGR valve.
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