Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid powertrain control module observes the difference between actual and commanded auxiliary transmission fluid pump pump speed is greater than 500 RPM for 4 out of 4.125 seconds.