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Home >> Cadillac >> 2003 >> CTS Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0447: EVAP Vent Valve Control Circuit Open >> Test Description

Test Description

The number below refers to the step number in the diagnostic procedure.

  1. 2

    Listen for a click when the valve operates. Ensure that both the ON and the OFF states are commanded. Repeat the commands as necessary.

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