Check 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 fuses or fusible link.

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

Refer to "WIRING DIAGRAM - F/FOG - ".

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 harness connector and ground.
  
  Fig 2: Checking Voltage Between BCM Harness Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: 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.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.

Fig 4: Checking Continuity Between BCM Harness Connector Terminal 52 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Terminals Continuity Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: Inspection End.
- NG: Check ground circuit harness.