Code Enable Criteria

• Ignition voltage is 10-18 volts.
• Start-up Engine Coolant Temperature (ECT) is 39-86°F (4-30°C).
• Start-up Inlet Air Temperature (IAT) is 39-86°F (4-30°C).
• Start up ECT and IAT are within 16°F (9°C).
• 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, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0440, P0442, P0443, P0446, P0449, P0452, P0453, P1106, P1107, P1112, P1114, P1115, P1121, or P1122 are not set.

DTC sets when PCM detects vacuum during a non-purge condition.