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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 142 (Engine Control System (Basic Inspection) (CUMMINS 5.0L)) >> Basic Inspection >> Def System Leak Test >> Work Procedure >> Inspect

Work Procedure: Inspect

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: If the system is unable to prime due to leaks, it will be necessary to turn the ignition switch OFF in order to stop the dosing unit. The dosing unit cannot be stopped using CONSULT.

While the test is running, inspect all DEF lines, fittings, and connections for external leaks.

NOTE:
  • If the system cannot build pressure, it will attempt to prime multiple times before setting a DTC.
  • If any DTCs occur while running this test, reference the appropriate DTC. Refer to DTC Index .
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