Code Enable Criteria

WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

System voltage is 10-18 volts.
Start-up Engine Coolant Temperature (ECT) is 39-86°F (4-30°C).
Start-up Intake Air Temperature (IAT) is 39-86°F (4-30°C).
Start-up ECT and IAT are within 16°F (9°C) of each other.
Fuel tank level is 15-85 percent.
Barometric (BARO) pressure is more than 75 kPa.
Vehicle Speed Sensor (VSS) is less than 75 MPH.
DTCs P0107, P0108, P0110, P0112, P0113, P0115, P0117, P0118, P0121, P0122, P0123, P0125, P0443, P0449, P0452, P0453, P1106. P1107, P1111, P1112, P1114, P1115, P1121, or P1122 are not set.

DTC sets when EVAP system is not able to achieve or maintain vacuum during diagnostic test.