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 - WITHOUT INTELLIGENT KEY SYSTEM ".

OPEN SWITCH SIGNAL INSPECTION

Turn ignition switch OFF.

While fully closing and opening the back door, check voltage between back door control unit connector B55 terminal 15 and ground.

15 - Ground

Fig 1: Checking Open Switch Signal Voltage

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: Open switch is OK.

NO: GO TO 2

OPEN SWITCH CIRCUIT INSPECTION
1. Disconnect back door latch and back door control unit connector.
2. Check continuity between back door control unit connector (A) B55 terminal 15 and back door latch (open switch) connector (B) D705 terminal 4.
  15 - 4: Continuity should exist.
3. Check continuity between back door control unit connector (A) B55 terminal 15 and ground.
  15 - Ground: Continuity should not exist.
  
  Fig 2: Checking Open Switch Circuit Continuity
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: GO TO 3
  
  NO: Repair the harness between the back door latch (open switch) and the back door control unit.
OPEN SWITCH GROUND INSPECTION
Check continuity between back door latch (open switch) connector D705 terminal 8 and ground.

8 - Ground: Continuity should exist.

Fig 3: Checking Close Switch Ground Circuit Continuity
Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: Replace the back door latch.

NO: Repair the harness between the back door latch (open switch) and ground.