AdBlue is used together with an SCR (Selective Catalytic Reduction) system on many modern diesel vehicles. The SCR system is designed to reduce NOx emissions. Depending on the vehicle, the system can include: AdBlue pump, injector, temperature sensors, level sensors, NOx sensors, ECU control strategies. For example, a commercial diesel vehicle can develop an AdBlue-related sensor or dosing problem. Depending on the manufacturer, the ECU may then introduce additional operating or restart restrictions. The AdBlue module deals with relevant SCR/AdBlue control strategies on supported ECUs. This is primarily a diesel-related system.