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 ".

CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector M24 terminal 27 and ground.
  27 - Ground
  
  When driver seat belt is fastened: Approx. 12V
  
  When driver seat belt is unfastened: Approx. 0V
  
  Is the inspection result normal?
  
  YES: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".
  
  NO: GO TO 2
CHECK SEAT BELT BUCKLE PRE-TENSIONER ASSEMBLY LH (SEAT BELT BUCKLE SWITCH) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter and seat belt buckle pre-tensioner assembly LH (seat belt buckle switch).
3. Check continuity between combination meter harness connector M24 (B) terminal 27 and seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) harness connector B74 (A) terminal 1.
  27 - 1: Continuity should exist.
4. Check continuity between combination meter harness connector M24 (B) terminal 27 and ground.
  27 - Ground: Continuity should not exist.
  
  Fig 1: Checking Continuity Between Combination Meter Connector M24 Terminal 27 And Ground
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: GO TO 3
  
  NO: Repair or replace harness.
CHECK SEAT BELT BUCKLE PRE-TENSIONER ASSEMBLY LH (SEAT BELT BUCKLE SWITCH) GROUND CIRCUIT
Check continuity between seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) harness connector B74 terminal 2 and ground.

2 - Ground: Continuity should exist.

Fig 2: Checking Continuity Between Seat Belt Buckle Pre-Tensioner Assembly LH Connector B74 Terminal 2 And Ground
Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: Inspection End.

NO: Repair or replace harness.