Conditions For Setting 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 HO2S signal voltage is steady between 410-490 mV for 150 seconds.
- The Throttle Position (TP) changes more than 5 percent within 1 second, 6 times.