Conditions For Running DTC

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Suburban, and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Trucks Only

DTCs P0401, P0404, or P0405 are not set.
DTCs P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0120, P0220, P0442, P0443, P0446, P0449, P0455, P0496, or P2135 are not set.
The engine is cranking or running.
The ignition 1 signal is between 11 volts and 18 volts.
The Throttle Position (TP) sensor angle is less than 95 percent.
The change in the TP sensor angle is less than 5 percent.
The MAP sensor is less than 80 kPa.
The change in the MAP sensor is less than 3 kPa.
The above conditions are met for 1.5 seconds.