Power Supply And Ground Circuit Inspection

• Check that any of the following fuses in the BCM is blown.

Fig 1: Fuse Condition Inspection Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

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 SYSTEM WIRING DIAGRAMS article .

Disconnect the BCM connector M4, check voltage between connecter terminal (refer to the "Chart" below") of the harness connector and body ground.

Fig 2: Terminals Connector Voltage Specifications Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Power Supply Circuit (BCM)

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG? 

1. OK >> GO TO 3.
2. NG >> Check harness for open and short between BCM and fuse.

Check continuity between the following terminal NOs. of the BCM connector M4 and body ground.

Fig 4: Terminals Connector Continuity Inspection

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Ground Circuit (BCM)

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG? 

1. OK >> System is OK.
2. NG >> Repair or replace harness.