How To Follow Trouble Diagnoses: Description

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following instructions before diagnosing.

Before performing trouble diagnoses, read the "Work Flow" in each article.
After repairs, re-check that the problem has been completely eliminated.
Refer to Component Location and Harness Connector Location for the Systems described in each article for identification/location of components and harness connectors.
When checking circuit continuity, ignition switch should be OFF.
Refer to the Circuit Diagram for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a sub-harness is used, refer to Wiring Diagram in each individual article and HARNESS LAYOUT for identification of harness connectors.
Before checking voltage at connectors, check battery voltage.
After accomplishing the Diagnosis Procedures and Electrical Components Inspection, make sure that all harness connectors are reconnected as they were.