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Home >> Cadillac >> 2003 >> Seville SLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0440: EVAP System - Large Leak >> Test Description

Test Description

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

  1. 4

    This step is used to verify if a leak is present.

  2. 6

    This step verifies proper operation of the FTP sensor.

  3. 9

    This step tests the EVAP canister purge solenoid for a restriction or blockage.

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