Code Enable Criteria

Conditions for running DTC:

• DTCs P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0440, P0442, P0446, P0443, P0449, P0452, P0453, P1106, P1107, P1111, P1112, P1114, P1115, P1121 or P1122 is not set.
• Ignition voltage is 10-18 volts.
• Barometric pressure is greater than 75 kPa.
• Fuel level is 15-85 percent.
• Engine coolant temperature and intake air temperature is 39-86°F (4-30°C).
• Start-up engine coolant temperature and intake air temperature is within 16°F (9°C) of each other.
• Vehicle speed is less than 75 MPH.

Conditions for setting DTC:

• PCM detects vacuum during a non-purge condition.