Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK GROUND CIRCUIT
1. Disconnect BCM harness connector M20.
2. Check continuity between BCM harness connector M20 terminal 67 (B) and ground.
  
  Fig 1: Checking Continuity Between BCM Harness Connector M20 Terminal 67 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Continuity Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
2. NG: Repair BCM ground circuit.