Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITH INTELLIGENT KEY SYSTEM ".

POWER LIFTGATE SWITCH FUNCTION INSPECTION
Check power liftgate switch using switch operation.

Did the back door respond correctly?

YES: GO TO 2

NO: Refer to "DIAGNOSIS PROCEDURE ".
KEYFOB SIGNAL INSPECTION
Check keyfob operation using lock and unlock buttons.

Did the keyfob operate correctly?

YES: GO TO 3

NO: Refer to "DIAGNOSIS PROCEDURE ".
INTELLIGENT KEY UNIT SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit, back door control unit and power liftgate switch connectors.
3. Check continuity between Intelligent Key unit connector (A) M70 terminal 23 and back door control unit connector (B) B55 terminal 23.
  23 - 23: Continuity should exist.
4. Check continuity between Intelligent Key unit connector (A) M70 terminal 23 and ground.
  23 - Ground: Continuity should not exist.
  
  Fig 1: Checking Intelligent Key Unit Signal
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: Replace Intelligent Key unit.
  
  NO: Repair or replace the harness as necessary.