BCM Power Supply and Ground Circuit Check

• Check 15A fuse [No. 1, located in fuse block (J/B)]
• Check 15A fuse [No. 22, located in fuse block (J/B)]
• Check 50A fusible link (letter M  , located in the fuse and fusible link box).
  NOTE: Refer to COMPONENT PARTS AND HARNESS CONNECTOR LOCATION  .

OK or NG

1. OK: Go to 2.
2. NG: If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to FUSES & CIRCUIT BREAKERS .

Check voltage between BCM connector M3, M4 terminal 38, 42, 55 and ground.

Fig 1: Checking Voltage At BCM Terminals 38, 42 & 45

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

Fig 2: BCM Terminals 38, 42 & 45 Specifications

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

OK or NG

1. OK: Go to 3.
2. NG: Check BCM power supply circuit for open or short.

1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52 and ground.
   Fig 3: Checking Continuity BCM Terminals 49 & 52 To Ground

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

   49 (B) - Ground: Continuity should exist  .

   52 (B) - Ground: Continuity should exist  .

OK or NG

1. OK: Power supply and ground circuit are OK.
2. NG: Check BCM ground circuit for open or short.