Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0117, P0118, or P0125 are not set.
The minimum noise level must be learned. The minimum noise level is learned when the following conditions are met:
- The engine coolant temperature (ECT) must be greater than 60° C (140° F).
- The engine speed is between 475-975 RPM for 10 seconds.
The engine speed is between 1,500-3,000 RPM.
The manifold absolute pressure (Map) is less than 49 kPa.
The engine coolant temperature (ECT) is more than 60° C (140° F).
The throttle angle is more than 0 percent.
The engine run time is more than 10 seconds.
The ignition voltage is more than 10 volts.