Test Description
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 number below refer to the step number in the diagnostic procedure.
- 2
When the problems are corrected which are causing the APP sensor DTCs to set, the status of this DTC will change to history.