Removal and Installation: Removal

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.

WARNING:

To reduce the risk of personal injury, do not get Diesel Exhaust Fluid (DEF) in your eyes as it contains urea. In case of contact, immediately flush eyes with large amounts of water for a minimum of 15 minutes. Do not swallow. In the event DEF is ingested, contact a physician immediately. Reference the Safety Data Sheet (SDS) for additional information.
The DEF line connecting the after treatment DEF dosing unit to the after treatment DEF dosing valve is under low pressure and should not be disconnected while the engine is running or before the system has completed the purge process after engine shutdown. Disconnecting the DEF line while under low pressure could cause DEF to spray.

Remove the DEF tank. Refer to Removal and Installation .
Disconnect the harness connectors (A) and remove the harness.

Courtesy of NISSAN NORTH AMERICA, INC.

: Front
Remove the lock ring (1) securing the DEF pump (2).

Courtesy of NISSAN NORTH AMERICA, INC.
Remove DEF pump from the DEF tank.
NOTE: When removing DEF pump from the DEF tank, make sure not to spill DEF fluid.