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

Test Description

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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