Conditions for Clearing 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.
DTCs P0642, P0643, P0652 and P0653 are Type A DTCs.