Conditions for Running the DTC
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P0053, P0054, P0059, P0060, P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0128, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0151, P0152, P0153, P0154, P0155, P0156, P0157, P0158, P0160, P0161, P0171, P0172, P0174, P0175, P0178, P0179, P0200, P0220, P0300, P0335, P0336, P0341, P0342, P0343, P0351-P0358, P0442, P0443, P0446, P0449, P0452, P0453, P0455, P0496, P0500, P0502, P0503, P0506, P0507, P1125, P1133, P1134, P1153, P1154, P1258, P1516, P2101, P2108, P2120, P2121, P2125, P2135 are not set.
- The intake air temperature (IAT) is between -7° C and +85° C (20-185° F).
- The barometric pressure (BARO) is greater than 74 kPa.
- The engine coolant temperature (ECT) is more than 75° C-120° C (167° F-248° F).
- The Closed Loop fuel control is enabled.
- The HO2S 1 is less than 100 mv, while Decel Fuel Cutoff parameter is active.
- The HO2S 2 is less than 100 mv for 1.6 seconds, while Decel Fuel Cutoff parameter is active.
- The TP Indicated Angle parameter increases 3-20 percent after exiting DFCO.
- The HO2S 1 is more than 600 mv after exiting DFCO.
- The HO2S 2 is more than 230 mv after exiting DFCO.
- This diagnostic attempts up to one test after exiting each valid DFCO period when the above conditions have been met. This diagnostic attempts up to 18 tests per drive cycle.