Code Enable Criteria

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Saturn SW2, 2001 Saturn SL2, 2001 Saturn SL1, 2001 Saturn SL, and 2001 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.

9 in. H2O initially pulled on fuel tank.
EVAP purge solenoid is commanded on (fixed PWM).
EVAP vent solenoid is commanded off (open).
Engine run time less than 2 minutes 24 seconds.
Fuel tank level 15-85 percent full.
BARO greater than 81 kPa.
Ignition voltage 11-18 volts.
ECT and IAT at start-up between 41-90°F (5-32°C).
ECT and IAT within 50°F.
No ECT, fuel tank pressure, IAT, MAP or VSS DTCs set.

DTC sets when EVAP system has reached 12 inches of water or greater for greater than 1.6 seconds, indicating a blocked vent system.

DTC diagnostic is run once during EVAP diagnostic test for a maximum of 96 seconds once enable criteria has been met. DTC diagnostic may also run during initial key-up. Diagnostic runs at this time only when strict operating parameters have been met.