WARNING: This page is about a different car, the 2011 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
Check continuity between terminals of the key switch and key lock solenoid.
TERMINAL CONTINUITY REFERENCE CHART
Condition
Terminal No.
Continuity
Key inserted
3 - 4
Yes
Key removed
No
Fig 1: Checking Continuity Between Terminals Of Key Switch And Key Lock Solenoid