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Home >> Cadillac >> 2010 >> STS 3.6 V, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Controls And Fuel - 4.6L (LH2) - DTC P0335 To DTC P2544) >> DTC P0420 or P0430 >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different variant/trim than selected.
  1. Driving Conditions
    • DTCs P0010, P0011, P0013, P0014, P0016, P0017, P0018, P0019, 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, P0345, P0346, P0351-P0358, P0401, P0403, P0404, P0405, P0406, 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, P2A00, P2A01, or P2A03 are not set.
    • The engine has been running for greater than 2 minutes.
    • The vehicle has been driven at greater than 1,000 RPM for greater than 16 seconds.
    • The vehicle has Fuel Trim Learn enabled.
    • The engine coolant temperature (ECT) is between 40-130°C (104-266°F).
    • The barometric pressure (BARO) is greater than 70 kPa.
    • The vehicle is in Closed Loop.
    • The intake air temperature (IAT) is greater than -20°C (-4°F).
    • The mass air flow (MAF) has been greater than 12 g/s for greater than 30 seconds.
    • The battery voltage is greater than 10.9 volts.
    • The calculated TWC temperature (Calc. TWC Temp.) is between 450-775°C (842-1,427°F).
  2. Idle Conditions
    • The throttle position (TP) is less than 2.0 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 speed is stable.
    • The vehicle speed is less than 2 km/h (1 mph).
    • For automatic transmission, the transmission is in Reverse, Drive, or Low.
    • 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. This diagnostic attempts up to 6 tests during each drive cycle.
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