Conditions for Setting the DTC
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.
P2ADA, P2ADD
The reductant control module detects a performance fault on the reductant quality sensor temperature signal for greater than 1 s.
P2ADB
The reductant control module detects that the reductant quality sensor temperature signal is out of range low for greater than 1 s.
P2ADC
The reductant control module detects that the reductant quality sensor temperature signal is out of range high for greater than 1 s.