Actions Taken When the DTC Sets
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1051 = DTCs listed in the DTC Descriptor Category = Type A DTC - No additional actions taken
DTC P20B9, P20BA, P20BB, P20BC, P20BD, P248A, P248B = DTCs listed in the DTC Descriptor Category = Type A DTC - Additional actions taken:
- Driver Information Display = Service Emission System/Service Exhaust Fluid System
- Reductant Heater 1 = Disabled
- Reductant Injector = Disabled