Conditions For Running DTC
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2003 Hummer H2, 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 GMC Sierra, and 2003 GMC Cab & Chassis Sierra. However, it is still accessible from the selected car via links, so may be relevant.
- The engine load is less than 60 percent.
- The engine speed is less than 3200 RPM.
- The vehicle speed is more than 10 MPH.
- Engine misfire is detected and DTC P0300 is set.