DTC Description: Notes
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
The after treatment intake NOx (nitrogen oxides) sensor is a smart device and communicates with the Engine Control Module (ECM) via the CAN2 communication lines. The after treatment intake NOx sensor performs internal diagnostics and reports malfunctions back to the primary ECM using the CAN2 communication lines. The NOx sensor is permanently attached to the NOx control module. They are serviced as a single component and cannot be replaced individually. The after treatment intake NOx sensor is used to measure the NOx emissions at the intake of the after treatment system.