PM Sensor Control Module

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 particulate matter sensor control module is a smart device and communicates with the engine control module (ECM) via CAN2 communication. The after treatment particulate matter sensor control module performs internal diagnostics and reports malfunctions back to the ECM using CAN2 lines. The particulate matter sensor is permanently attached to the particulate matter sensor control module. They are serviced as a single component and can not be replaced individually. The after treatment particulate matter sensor is used to measure the soot emissions at the outlet of the after treatment system.

Courtesy of NISSAN NORTH AMERICA, INC.

The after treatment particulate matter sensor control module reports all diagnostic failures and malfunctions back to the ECM. When that happens, the ECM sets a diagnostic trouble code and illuminates the Malfunction Indicator Lamp.