Code Enable Criteria

Conditions for running DTC:

• DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0140, P0141, P0171, P0172, P0440, P0442, P0443, P0446, P0449, P1106, P1107, P1111, P1112, P1114, P1115, P1121, P1122, P1133, P1134 or P1441 is not set.
• Engine coolant temperature is at 40-230°F (4.4-110°C).
• Start-up engine coolant temperature is less than 158°F (70°C).
• Engine operates for more than 210 seconds.
• Intake air temperature is at 40-158°F (4.4-70°C).
• Short term FT is -3 and 4.
• Engine load is 24-37 percent.
• MAP is greater than 40 kPa.
• BARO is greater than 75 kPa.
• MAF is 11-18.5 grams/second.
• Engine speed is greater than 1200 RPM.
• Ignition voltage is 10-18 volts.
• Vehicle speed is greater than 5 MPH.

Conditions for setting DTC:

• Pre-catalyst HO2S voltage remains greater than a predetermined lean value during test.
• Short term FT does not increase a calibrated amount during the test.
• Both conditions exist for 3 consecutive tests.