Inspection For Power Supply And Ground Circuit

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES
- Check for blown BCM fuses.
  
  Fig 1: Fuse Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
Refer to , "WIRING DIAGRAM - CHIME - ".

OK or NG
1. OK: GO TO 2.
2. NG: If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to , "POWER SUPPLY ROUTING CIRCUIT ".
POWER SUPPLY CIRCUIT CHECK
1. Disconnect BCM connector.
2. Check voltage between BCM connector E39 terminal 7 (W/B) and ground. Refer to , "POWER SUPPLY ROUTING CIRCUIT "
  
  Fig 2: Ignition Switch Position And Terminal
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between BCM Connector E39 Terminal 7 (W/B) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Check harness for open or short between BCM and fuse.
GROUND CIRCUIT CHECK
Check continuity between BCM harness connector E39 terminal 8 and body ground. Refer to , "GROUND CIRCUIT "

Fig 4: Terminal And Continuity
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Continuity Between BCM Harness Connector E39 Terminal 8 And Body Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: INSPECTION END.
2. NG: Check harness ground circuit.