Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle speed is greater than 8 km/h (5 mph).
The engine speed is less than 7,000 RPM.
The engine load is less than 60 percent.
Engine misfire is detected and DTC P0300 sets with the MIL illuminated.
DTCs P1380 and P1381 run continuously when the above conditions are met.