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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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