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.
NOTE:
Repair any existing DTCs related to power sensor supply circuit before performing diagnosis procedure for this DTC.
The Engine Control Module (ECM) provides a 5V supply and ground to the fuel pressure sensor on the sensor supply circuit. The fuel pressure sensor provides a signal to the ECM on the fuel pressure sensor signal circuit. This sensor monitors the fuel pressure from the low fuel pressure system (lift pump to the Stage 2 filter).