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Home >> GMC >> 2001 >> Jimmy 2D Utility, 4WD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0403: EGR Valve Control Circuit >> Test Description
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Test Description

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 6

    This step tests for voltage that is constantly being applied to the EGR valve.
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