Conditions for Running the DTC

• DTC P0030, P0031, P0032, P0036, P0037, P0038, P0053, P0054, P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0111, P0117, P0118, P0119, P0121, P0122, P0123, P0128, P0131, P0132, P0133, P0135, P0137, P0138, P013A, P013B, P013E, P013F, P0141, P015A, P015B, P0171, P0172, P0201, P0202, P0203, P0204, P0222, P0223, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0300, P0301, P0302, P0303, P0304, P1248, P1249, P124A, P124B, P16F3, P2101, P2135, P2147, P2148, P2150, P2151, P2153, P2154, P2156, P2157, P2270, or P2271 is not set.
• The engine speed is between 950-2,950 RPM to enable the catalyst diagnostic. Once the engine speed is in range, the engine speed must be between 900-3,050 RPM to keep the test enabled.
• Accelerator pedal position is at most 4%.
• Ethanol estimation is not active.
• Evaporative emission (EVAP) purge is not active.
• Post HO2S heater is ON for greater than 180s.
• Mass air flow (MAF) is between 2-13g/s.
• System voltage is between 10-32V.
• Vehicle speed is between 64-126 km/h (40-78 MPH) to enable the catalyst diagnostic. To keep the test enabled the vehicle speed is between 56-132 km/h (35-82 MPH).
• Catalyst calculated temperature is between 500-900°C (932-1,652°F).
• Engine is operating in closed loop.
• Engine is operating in DFCO.

This diagnostic attempts one test during each valid OFF-idle period once the above conditions have been met. This diagnostic attempts up to 4 tests during each drive cycle.