Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0030, P0031, P0036, P0037, P0038, P0068, P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0120, P0121, P0122, P0123, P0125, P0128, P0130, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0220, P0300, P0315, P0326, P0327, P0336, P0340, P0341, P0442, P0446, P0452, P0453, P0455, P0496, P0500, P0502, P0506, P0507, P0601, P0602, P0606, P0641, P0722, P0723, P1133, P1134, P1516, P1621, P2135, P2138, or P2176 is not set.
- Before the ECM performs the idle test, the vehicle must be driven under the following conditions:
- The engine speed is greater than 1, 300 RPM.
- The engine run time is greater than 100 s.
- Both conditions exist for greater than 16 s.
- The vehicle speed is less than 1.6 km/h (1 mph).
- The throttle position is less than 2 %.
- The Mass Air Flow (MAF) is between 2-21 g/s.
- The engine is operating in Closed Loop.
- The fuel trim learn is enabled.
- The Engine Coolant Temperature (ECT) is between 45-129°C (113-264°F).
- The Barometric Pressure (BARO) is greater than 70 kPa.
- The Catalytic Converter Calculated Temperature parameter is between 600-900°C (1, 112-1, 652°F) for greater than 6 min.
- The Intake Air Temperature (IAT) is between -20 and +250°C (-4 and +482°F).
- The battery voltage is greater than 11 V.
- The transmission is in Drive Range-Automatic transmissions only.
- The short term fuel trim is between -10 and +10 %.
- The engine is idling for less than 50 s.
- This diagnostic attempts one test during each valid idle period when the above conditions have been met. This diagnostic attempts up to 8 tests during each drive cycle.