Code Enable Criteria
For DTC to run, the following conditions must be met:
- DTCs P0107, P0108, P0112, P0113, P0117, P0118, P0125, P0440, P0443, P0449, P0452, P0453, P1106, P1107, P1111, P1112, P1114, P1115, P1121, and P1122 are not set.
- 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 20-85 percent.
- Barometric Pressure (BARO) is more than 75 kPa.
- Vehicle speed is less than 75 MPH.
DTC will set when EVAP system can achieve vacuum but a vacuum decay is detected during diagnostic test.