Conditions For Running DTC

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0141, P0161, P0200, P0300, P0442, P0446, P0452, P0453, P0455, or P496 are not set.
The engine run time is more than 300 seconds.
The loop status is closed.
The ignition 1 signal is between 10-18 volts.