Conditions For Setting DTC

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

The TP sensor reading is more than a predicted value when the MAP is less than 55 kPa.
The TP sensor reading is less than a predicted value when the MAP is more than 65 kPa.
The above conditions are present for 15 seconds.