Inspection For Power Supply And Ground Circuit

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

CHECK FUSES OR FUSIBLE LINK
Check for blown BCM fuses or fusible link.

Fig 1: Blown BCM Fuses Or Fusible Link Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Refer to "WIRING DIAGRAM - INT/L - ".

OK or NG
- OK: GO TO 2.
- NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM connector and ground.
  
  Fig 2: Terminals Voltage Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: Check harness for open between BCM and fuse.
  
  Fig 3: Checking Voltage Between BCM Connector & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.

Fig 4: Terminals Continuity Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: Inspection End.
- NG: Check harness ground circuit.
  
  Fig 5: Checking Continuity Between BCM Harness Connector Terminal 52 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.