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Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Driving Conditions
    • DTCs P0030, P0036, P0053, P0054, P0059, P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0128, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0140, P0141, P0151-P0155, P0171, P0172, P0174, P0175, P0201-P0208, P0220, P0222, P0223, P0315, P0300, P0301-P0308, P0335, P0336, P0340, P0341, P0351-P0358, P0401, P0403, P0404, P0405, P0406, P0411, P0412, P0418, P0442, P0443, P0446, P0449, P0451, P0452, P0453, P0454, P0455, P0496, P0506, P0507, P060D, P1101, P1133, P1153, P1174, P1175, P1258, P1400, P1404, P1516, P2101, P2119, P2120, P2122, P2123, P2125, P2127, P2128, P2135, P2138, P2176, P2430, P2431, P2432, P2433, P2440, P2444, P2A00, P2A01, P2A03 are not set.
    • The engine has been running for greater than 2 minutes.
    • The vehicle is in Closed Loop.
    • The vehicle has Fuel Trim Learn enabled.
    • The vehicle has been driven at greater than 1,000 RPM for greater than 16 seconds since the previous idle period.
    • The mass air flow (MAF) has been greater than 12 g/s for greater than 30 seconds.
    • The engine coolant temperature (ECT) is between 40-130°C (104-266°F).
    • The barometric pressure (BARO) is greater than 70 kPa.
    • The intake air temperature (IAT) is greater than -20°C (-4°F).
    • The throttle position (TP) is greater than 2 percent.
    • The calculated TWC temperature (Calc. TWC Temp.) is between 400-640°C (752-1,184°F).
    • The battery voltage is greater than 10.9 volts.
  2. Idle Conditions
    • The vehicle speed is less than 2 km/h (1 mph).
    • The engine speed has been greater than 1,000 RPM for 16 seconds.
    • The automatic transmission is in Reverse, Drive, or Low.
    • The TP is less than 2 percent.
    • The short term fuel trim (FT) is between -10 and +10 percent.
    • The engine speed is less than 1,000 RPM.
    • The engine idle is stable.
    • This diagnostic attempts one test during each valid idle period until a pass or fail decision has been reached when the above conditions have been met. These diagnostic attempts up to 6 tests during each drive cycle.
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