When Monitored
WARNING: This page is about a different car, the 2013 RAM 2500 HD and 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
With the igniting on. During in-plant testing, the APPS is checked to make sure the minimum and maximum values can be reached. The PCM performs the diagnostic test for this DTC after the diagnostic test for P2166 has passed.