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 ".

CLOSE SWITCH SIGNAL INSPECTION

Turn ignition switch OFF.

While fully opening and closing the back door, check voltage between back door control unit connector B55 terminal 14 and ground.

14 - Ground

Fig 1: Checking Close Switch Signal Voltage

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: Close switch is OK.

NO: GO TO 2

CLOSE 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 14 and back door latch (close switch) connector (B) D705 terminal 5.
  14 - 5: Continuity should exist.
3. Check continuity between back door control unit connector (A) B55 terminal 14 and ground.
  14 - Ground: Continuity should not exist.
  
  Fig 2: Checking Close 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 (close switch) and the back door control unit.
CLOSE SWITCH GROUND INSPECTION
Check continuity between back door latch (close 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 (close switch) and ground.